subject:(High spatial resolution)

University of Illinois – Urbana-Champaign

1. Zou, Yi. A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California.

Degree: MS, Geography, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/88215

► Maps of classified surface features are a key output from remote sensing. Conventional methods of pixel-based classification label each pixel independently by considering only a… (more)

Subjects/Keywords: High spatial resolution imagery; Contextual classification; Forest classification; Remote sensing; Lifeforms

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APA (6^th Edition):

Zou, Y. (2015). A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88215

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zou, Yi. “A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed March 02, 2021. http://hdl.handle.net/2142/88215.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zou, Yi. “A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California.” 2015. Web. 02 Mar 2021.

Vancouver:

Zou Y. A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2142/88215.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zou Y. A contextual classification approach for forest land cover mapping using high spatial resolution multispectral satellite imagery – a case study in Lake Tahoe, California. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88215

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

2. Nongnual, Teeranan. Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution.

Degree: PhD, Chemistry, 2017, Clemson University

URL: https://tigerprints.clemson.edu/all_dissertations/1961

► Highly fluorescent and photostable conjugated polymer nanoparticles that freely diffuse in glycerol/water mixtures were individually tracked at an acquisition rate up to 1 kHz. The… (more)

▼ Highly fluorescent and photostable conjugated polymer nanoparticles that freely diffuse in glycerol/water mixtures were individually tracked at an acquisition rate up to 1 kHz. The average bright fluorescence emission of about 15000 photons per particle per millisecond exposure time (~500 photons detected by sCMOS camera) yields a theoretical localization uncertainty of 10 nm per frame along lateral plane. Axial positional trajectories for 3D particle tracking were determined by defocused imaging, which evaluates the width of fluorescence spot at different displaced focal planes, yielding an axial resolution of 20 nm. The diffusion coefficient of nanoparticles in solution was measured by using the mean squared displacement, which agrees well with the Stokes-Einstein equation according to given the experimental solution viscosity and independently determined particle size. Furthermore, a high-resolution optical image of porous agarose gel was constructed by using particle tracking in order to characterize the structure of nanopores and determine the diffusion dynamics inside the pores and channels. The position trajectories consisting of confined diffusion of a particle in individual pores were analyzed by position histogram and mean squared displacement methods, yielding pore size distribution and diffusion coefficient of single particles. Our findings indicate that conjugated polymer nanoparticles, which exhibit higher emission rates and higher absorption cross sections as compared to typical results for single organic dye molecules and quantum dots, could be effectively used to investigate the dynamic behavior of individual small biomolecules or motor proteins with high spatiotemporal resolution. The information of particle dynamics with anomalous diffusion could be useful for the study of cellular function, particle trafficking, membrane dynamic, and drug molecule delivery. Advisors/Committee Members: Jason McNeill, Committee Chair, Andrew Tennyson, Brian Dominy, Leah Casabianca.

Subjects/Keywords: Confined diffusion; Conjugated polymer nanoparticles; High spatial resolution; Particle tracking

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APA (6^th Edition):

Nongnual, T. (2017). Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/1961

Chicago Manual of Style (16^th Edition):

Nongnual, Teeranan. “Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution.” 2017. Doctoral Dissertation, Clemson University. Accessed March 02, 2021. https://tigerprints.clemson.edu/all_dissertations/1961.

MLA Handbook (7^th Edition):

Nongnual, Teeranan. “Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution.” 2017. Web. 02 Mar 2021.

Vancouver:

Nongnual T. Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution. [Internet] [Doctoral dissertation]. Clemson University; 2017. [cited 2021 Mar 02]. Available from: https://tigerprints.clemson.edu/all_dissertations/1961.

Council of Science Editors:

Nongnual T. Fast Tracking of Single Conjugated Polymer Nanoparticles with High Spatial Resolution. [Doctoral Dissertation]. Clemson University; 2017. Available from: https://tigerprints.clemson.edu/all_dissertations/1961

University of South Carolina

3. Lamsal, Nirmal. The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer.

Degree: PhD, Chemistry and Biochemistry, 2016, University of South Carolina

URL: https://scholarcommons.sc.edu/etd/3422

► Raman spectroscopy is a light scattering technique that has a huge potential for standoff measurements in applications such as planetary exploration because a Raman… (more)

▼ Raman spectroscopy is a light scattering technique that has a huge potential for standoff measurements in applications such as planetary exploration because a Raman spectrum provides a unique molecular fingerprint that can be used for unambiguous identification of target molecules. For this reason, NASA has selected a Raman spectrometer as one of the major instruments for its new Mars lander mission, Mars 2020, in the search for biomarkers that would be the indicators of past or present life. Raman scattering is strongest at UV wavelengths because of the inherent increase in the Raman cross section at shorter wavelengths and because of the possibility of UV resonance enhancement. Thus, a Raman spectrometer for planetary exploration would ideally be a UV instrument. However, existing UV Raman spectrometers are not optimal to integrate for planetary exploration because they are large and heavy. Existing UV Raman spectrometers also offer very low light throughput due to the need for narrow entrance slits to provide high spectral resolution. This thesis discusses the development of a new type of Fourier transform (FT) Raman spectrometer; a spatial heterodyne Raman spectrometer (SHRS), which offers several advantages for field-based UV Raman applications. The SHRS generates a spatial interferogram using stationary diffraction gratings and an imaging detector. The SHRS is lightweight, contains no moving parts, and allows very high spectral resolution Raman measurements to be made in an exceptionally small package, even in the deep UV. In this study, for the first time, we developed a SHRS system for deep UV applications using 244 nm excitation that has a spectral resolution less than 5 cm-1 and a spectral bandpass of 2600 cm-1. Raman spectra of several liquid and solid compounds were measured using a 244 nm laser to demonstrate the spectral resolution and range of the system. The SHRS has a large entrance aperture and wide collection angle, which was shown to be beneficial for the deep UV measurements of photosensitive materials like NH4NO3 by using a large laser spot size with low laser irradiance on the sample. This is not possible using conventional UV Raman systems where the need to focus the laser on sample often leads to photodecomposition. In addition, the use of deep-UV excitation to mitigate fluorescence was demonstrated by measuring Rh6G, a highly fluorescent compound, in acetonitrile solution. We also evaluated the performance of the SHRS for standoff Raman measurements in ambient light conditions using pulsed lasers and a gated ICCD detector. Standoff UV and visible Raman spectra of a wide variety of materials were measured at distances of 3-18 m, using 266 nm and 532 nm pulsed lasers, with 12.4” and 3.8” aperture telescopes, respectively. We observed that the wide acceptance angle of the SHRS simplifies optical coupling of the spectrometer to the telescope and makes alignment of the laser on the sample easier. More recently, we improved the SHRS design by replacing the cube beamsplitter with a… Advisors/Committee Members: S. Michael Angel.

Subjects/Keywords: Chemistry; High Resolution; Deep-UV; Spatial; Heterodyne; Raman Spectrometer

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APA (6^th Edition):

Lamsal, N. (2016). The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer. (Doctoral Dissertation). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/3422

Chicago Manual of Style (16^th Edition):

Lamsal, Nirmal. “The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer.” 2016. Doctoral Dissertation, University of South Carolina. Accessed March 02, 2021. https://scholarcommons.sc.edu/etd/3422.

MLA Handbook (7^th Edition):

Lamsal, Nirmal. “The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer.” 2016. Web. 02 Mar 2021.

Vancouver:

Lamsal N. The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer. [Internet] [Doctoral dissertation]. University of South Carolina; 2016. [cited 2021 Mar 02]. Available from: https://scholarcommons.sc.edu/etd/3422.

Council of Science Editors:

Lamsal N. The Development Of A High Resolution Deep-UV Spatial Heterodyne Raman Spectrometer. [Doctoral Dissertation]. University of South Carolina; 2016. Available from: https://scholarcommons.sc.edu/etd/3422

4. Zhang, Kongwen. Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization.

Degree: PhD, Earth & Space Science, 2015, York University

URL: http://hdl.handle.net/10315/29915

► This dissertation describes three contributions in the characterization of vegetation canopies using remote sensing data, with a focus on hyperspectral and very high spatial resolution… (more)

Subjects/Keywords: Remote sensing; Forestry; Remote Sensing; Hyperspectral; High spatial resolution imagery

11 more images…

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APA (6^th Edition):

Zhang, K. (2015). Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization. (Doctoral Dissertation). York University. Retrieved from http://hdl.handle.net/10315/29915

Chicago Manual of Style (16^th Edition):

Zhang, Kongwen. “Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization.” 2015. Doctoral Dissertation, York University. Accessed March 02, 2021. http://hdl.handle.net/10315/29915.

MLA Handbook (7^th Edition):

Zhang, Kongwen. “Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization.” 2015. Web. 02 Mar 2021.

Vancouver:

Zhang K. Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization. [Internet] [Doctoral dissertation]. York University; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10315/29915.

Council of Science Editors:

Zhang K. Exploring Hyperspectral and Very High Spatial Resolution Imagery in Vegetation Characterization. [Doctoral Dissertation]. York University; 2015. Available from: http://hdl.handle.net/10315/29915

5. Laband, Kimberley. Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans.

Degree: Docteur es, Sciences de la vie et de la santé. Reproduction, 2017, Sorbonne Paris Cité

URL: http://www.theses.fr/2017USPCC275

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Les gamètes femelles appelés ovocytes sont produits par un type spécifique de division cellulaire appelée méiose. Afin de produire des gamètes haploïdes, et contrairement aux… (more)

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Les gamètes femelles appelés ovocytes sont produits par un type spécifique de division cellulaire appelée méiose. Afin de produire des gamètes haploïdes, et contrairement aux divisions mitotiques des cellules somatiques, la méiose implique une seule étape de réplication du génome suivie de deux étapes de ségrégation des chromosomes. La fidélité de la ségrégation des chromosomes pendant la méiose est cruciale pour éviter l’aneuploïdie embryonnaire qui entraînerait des défauts de développement ou un avortement spontané. Dans la plupart des types cellulaires, la ségrégation des chromosomes repose sur un fuseau composé de microtubules. En parallèle à l'assemblage du fuseau, des complexes multi-protéiques appelés kinétochores s’assemblent sur le côté des chromosomes et leur permettent d’interagir avec les microtubules dynamiques du fuseau. Étonnamment, la ségrégation des chromosomes dans l'ovocyte de C. elegans se déroule d'une manière atypique indépendante des kinétochores. Le mécanisme alternatif utilisé dans ces oocytes pour la ségrégation des chromosomes est cependant inconnu. Au cours de mon doctorat, j'ai utilisé une combinaison d'imagerie photonique à haute résolution temporelle, corrélée à de la microscopie électronique à haute résolution spatiale. J’ai également utilisé de la photoablation par laser des microtubules et réalisé l'inhibition ciblée de protéines clés pour disséquer le mécanisme atypique de ségrégation des chromosomes dans l'ovocyte de C. elegans. Mes résultats montrent que la ségrégation des chromosomes est produite par une force dépendante des microtubules qui pousse les chromosomes. Par une analyse détaillée de l’organisation des microtubules dans des fuseaux en anaphase partiellement reconstruits par microscopie électronique en tomographie, je propose un modèle impliquant la génération de force par l'allongement d’un réseau de courts microtubules formant le fuseau central. De plus, je démontre que l'activité de l'orthologue de CLASP chez C. elegans (CLS-2) est essentielle pour l'assemblage du fuseau en anaphase. Ce travail est actuellement sous presse dans le journal Nature Communications. Parallèlement, j'ai disséqué le rôle de CLS-2 dans l'assemblage du fuseau d'ovocytes et la ségrégation chromosomique. J'ai perturbé de manière systématique les domaines individuels et les résidus conservés de manière évolutive dans CLS-2 pour déterminer leur contribution à la fonction et à la localisation de cette protéine pendant la première méiose femelle. Dans l'ensemble, mes résultats montrent que la ségrégation chromosomique dans l'ovocyte de C. elegans consiste en un mécanisme de poussée chromosomique atypique et dépendant de CLS-2.

Female gametes called oocytes are produced through a specific type of celldivision termed meiosis. In order to produce haploid gametes, and unlike mitoticdivisions of somatic cells, meiosis involves a single round of genome replication followed by two rounds of chromosome segregation. Accuracy of chromosome segregation during meiosis is crucial to avoiding embryonic…

Advisors/Committee Members: Dumont, Julien (thesis director).

Subjects/Keywords: Imagerie photonique à haute résolution temporelle; Combination of high spatial and temporal resolution live imaging

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APA (6^th Edition):

Laband, K. (2017). Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans. (Doctoral Dissertation). Sorbonne Paris Cité. Retrieved from http://www.theses.fr/2017USPCC275

Chicago Manual of Style (16^th Edition):

Laband, Kimberley. “Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans.” 2017. Doctoral Dissertation, Sorbonne Paris Cité. Accessed March 02, 2021. http://www.theses.fr/2017USPCC275.

MLA Handbook (7^th Edition):

Laband, Kimberley. “Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans.” 2017. Web. 02 Mar 2021.

Vancouver:

Laband K. Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans. [Internet] [Doctoral dissertation]. Sorbonne Paris Cité; 2017. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2017USPCC275.

Council of Science Editors:

Laband K. Mechanisms of chromosome segregation in the C. elegans oocyte : Mécanismes de ségrégation des chromosomes dans l'ovocyte de C. elegans. [Doctoral Dissertation]. Sorbonne Paris Cité; 2017. Available from: http://www.theses.fr/2017USPCC275

6. Duenas Fadic, Maria Emilia. Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging.

Degree: 2018, Iowa State University

URL: https://lib.dr.iastate.edu/etd/17176

► This thesis presents efforts in the advancement and application of high-spatial resolution matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) for the mapping of small metabolites… (more)

▼ This thesis presents efforts in the advancement and application of high-spatial resolution matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) for the mapping of small metabolites and lipids at the cellular and sub-cellular level. The following work presents a number of advances, using both 2- and 3-dimensional MALDI-MSI to enable visualization at the sub-cellular level. The first chapter consists of a general introduction to the technique of MALDI-MSI, and the seventh and final chapter provides a brief summary of the presented work and possible future directions. The second chapter presents a technology development for the optimization and application of matrix recrystallization to improve lipid ion signals in maize embryos and leaves. Using the optimized recrystallization conditions, the ion signals were improved three times, enhancing the image quality of lipid species with no apparent changes in their localization. Additionally, when methanol was used as a recrystallization solvent, unexpected side reactions were observed between phosphatidic acid and methanol vapor, suggesting recrystallization solvent should be carefully selected to avoid side reactions. The third chapter presents an application using 5- and 10-um high spatial resolution MALDI-MSI to explore quantitative fatty acyl distributions of two classes of thylakoid membrane lipids along the developmental gradient of maize leaves in two inbred lines, B73 and Mo17, and the reciprocal hybrid lines, B73xMo17 and Mo17xB73. This study demonstrated that high-resolution MALDI-MSI analysis can be directly applied to multicellular plant tissues to uncover cell-specific metabolic biology that has not been possible using traditional metabolomics methodologies. For example, certain thylakoid membrane lipids (e.g. phosphatidylglycerol (PG) 32:0) show genotype-specific differences in cellular distributions. Inbred B73 shows preferential localization of PG 32:0 in bundle sheath cells, while a more uniform distribution between bundle sheath and mesophyll cells in inbred Mo17. The fourth chapter present the first time MALDI-MSI has been applied for three dimensional chemical imaging of a single cell using newly fertilized individual zebrafish embryos as a model system. High-spatial resolution MALDI-MSI was used to map and visualize the three-dimensional spatial distribution of phospholipid classes, phosphatidylcholines (PC), phosphatidylethanolamines (PE), and phosphatidylinositols (PI), in the zebrafish embryo. The 3D MALDI-MSI volumetric reconstructions were then used to compare four different normalization approaches to find reliable relative quantification in 2D- and 3D- MALDI MSI data sets. Furthermore, two-dimensional MSI was studied for embryos at different cell developmental stages (1-, 2-, 4-, 8-, and 16-cell stage) to investigate the localization changes of some lipids, revealing heterogeneous localizations of different classes of lipids in the embryo. The fifth chapter discusses the development of a high-throughput MALDI-MS based…

Subjects/Keywords: high spatial resolution; lipids; MALDI; mass spectrometry imaging; metabolomics; single-cell; Analytical Chemistry

10 more images…

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APA (6^th Edition):

Duenas Fadic, M. E. (2018). Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/17176

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Duenas Fadic, Maria Emilia. “Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging.” 2018. Thesis, Iowa State University. Accessed March 02, 2021. https://lib.dr.iastate.edu/etd/17176.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Duenas Fadic, Maria Emilia. “Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging.” 2018. Web. 02 Mar 2021.

Vancouver:

Duenas Fadic ME. Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging. [Internet] [Thesis]. Iowa State University; 2018. [cited 2021 Mar 02]. Available from: https://lib.dr.iastate.edu/etd/17176.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Duenas Fadic ME. Advances in cellular and sub-cellular level localization of lipids and metabolites using two- and three dimensional high-spatial resolution MALDI mass spectrometry imaging. [Thesis]. Iowa State University; 2018. Available from: https://lib.dr.iastate.edu/etd/17176

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ohio University

7. Kaufman, Jason R. Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery.

Degree: PhD, Electrical Engineering (Engineering and Technology), 2014, Ohio University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1408706595

► In recent years, hyperspectral imagery (HSI) has been increasingly used for mining, agricultural, and surveillance applications. Such imagery typically has fine spectral resolution but coarse… (more)

Subjects/Keywords: Remote Sensing; Electrical Engineering; hyperspectral imagery; high spatial resolution imagery; spatial-spectral feature extraction; image resolution enhancement; pansharpening; image fusion; material detection and identification

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APA (6^th Edition):

Kaufman, J. R. (2014). Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery. (Doctoral Dissertation). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1408706595

Chicago Manual of Style (16^th Edition):

Kaufman, Jason R. “Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery.” 2014. Doctoral Dissertation, Ohio University. Accessed March 02, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1408706595.

MLA Handbook (7^th Edition):

Kaufman, Jason R. “Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery.” 2014. Web. 02 Mar 2021.

Vancouver:

Kaufman JR. Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery. [Internet] [Doctoral dissertation]. Ohio University; 2014. [cited 2021 Mar 02]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1408706595.

Council of Science Editors:

Kaufman JR. Spatial-Spectral Feature Extraction on Pansharpened Hyperspectral Imagery. [Doctoral Dissertation]. Ohio University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1408706595

Universidade do Rio Grande do Sul

8. Ruiz, Luis Fernando Chimelo. Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado.

Degree: 2014, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/111857

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Câmaras não métricas acopladas a Veículos Aéreos Não Tripulados (VANT) possibilitam coleta de imagens com alta resolução espacial e temporal. Além disso, o custo de… (more)

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Câmaras não métricas acopladas a Veículos Aéreos Não Tripulados (VANT) possibilitam coleta de imagens com alta resolução espacial e temporal. Além disso, o custo de operação e manutenção desses equipamentos são reduzidos. A classificação da cobertura da terra por meio dessas imagens são dificultadas devido à alta variabilidade espectral dos alvos e ao grande volume de dados gerados. Esses contratempos são contornados utilizando Análise de Imagens Baseada em Objetos (Object-Based Image Analysis – OBIA) e algoritmos de mineração de dados. Um algoritmo empregado na OBIA são as Árvores de Decisão (AD). Essa técnica possibilita tanto a seleção de atributos mais informativos quanto a classificação das regiões. Novas técnicas de AD foram desenvolvidas e, nessas inovações, foram inseridas funções para selecionar atributos e para melhorar a classificação. Um exemplo é o algoritmo C5.0, que possui uma função de redução de dados e uma de reforço. Nesse contexto, este trabalho tem como objetivo (i) avaliar o método de segmentação por crescimento de regiões em imagens com altíssima resolução espacial, (ii) determinar os atributos preditivos mais importantes na discriminação das classes e (iii) avaliar as classificações das regiões em relação aos parâmetros de seleção dos atributos (winnow) e de reforço (trial), que estão contidos no algoritmo C5.0. A segmentação da imagem foi efetuada no programa Spring, já as regiões geradas na segmentação foram classificadas pelo modelo de AD C5.0, que está disponível no programa R. Como resultado foi identificado que a segmentação crescimento de regiões possibilitou uma alta correspondência com regiões geradas pelo especialista, resultando em valores de Reference Bounded Segments Booster (RBSB) próximos a 0. Os atributos mais importantes na construção dos modelos por AD foram a razão entre a banda do verde com a azul (r_v_a) e o Modelo Digital de Elevação (MDE). Para o parâmetro de reforço (trial), não foi identificada melhora na acurácia da classificação ao aumentar seu valor. Já o parâmetro winnow possibilitou uma redução no número de atributos preditivos, sem perdas estatisticamente significativas na acurácia da classificação. A função de reforço (trial) não melhorou a classificação da cobertura da terra. Também não foram constatadas diferenças estatisticamente significativas quando winnow selecionado como verdadeiro, mas se encontrou o benefício desse último parâmetro reduzindo a dimensionalidade dos dados. Nesse sentido, este trabalho contribuiu para a classificação da cobertura da terra em imagens coletadas por VANT, uma vez que se desenvolveu algoritmos para automatizar os processos da OBIA e para avaliar a classificação das regiões em relação às funções de reforço (winnow) e de seleção do atributo (winnow) do classificador por árvore de decisão C5.0.

Non-metric cameras attached to Unmanned Aerial Vehicles (UAV) enable collection of images with high spatial and temporal resolution. In addition, the cost of operation and maintenance of equipment are reduced. The land cover…

Advisors/Committee Members: Guasselli, Laurindo Antônio.

Subjects/Keywords: Object-based image analysis; Sensoriamento remoto; Imagem digital; Decision tree; Arvore de decisoes; High resolution spatial images

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APA (6^th Edition):

Ruiz, L. F. C. (2014). Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/111857

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ruiz, Luis Fernando Chimelo. “Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado.” 2014. Thesis, Universidade do Rio Grande do Sul. Accessed March 02, 2021. http://hdl.handle.net/10183/111857.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ruiz, Luis Fernando Chimelo. “Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado.” 2014. Web. 02 Mar 2021.

Vancouver:

Ruiz LFC. Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10183/111857.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ruiz LFC. Uma abordagem de classificação da cobertura da terra em imagens obtidas por veículo aéreo não tripulado. [Thesis]. Universidade do Rio Grande do Sul; 2014. Available from: http://hdl.handle.net/10183/111857

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Brunswick

9. Dey, Vivek. A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery.

Degree: 2011, University of New Brunswick

URL: http://hdl.handle.net/1882/35388

► With the advent of very high spatial resolution (VHR) satellite, spatial details within the image scene have increased considerably. This led to the development of… (more)

Subjects/Keywords: Optical Remote Sensing; Object-based Image analysis; Segmentation; eCognition; Building Extraction; Very High Spatial resolution; Satellite Image

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dey, V. (2011). A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery. (Thesis). University of New Brunswick. Retrieved from http://hdl.handle.net/1882/35388

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dey, Vivek. “A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery.” 2011. Thesis, University of New Brunswick. Accessed March 02, 2021. http://hdl.handle.net/1882/35388.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dey, Vivek. “A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery.” 2011. Web. 02 Mar 2021.

Vancouver:

Dey V. A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery. [Internet] [Thesis]. University of New Brunswick; 2011. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1882/35388.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dey V. A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery. [Thesis]. University of New Brunswick; 2011. Available from: http://hdl.handle.net/1882/35388

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

10. Bonato, Simon. Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel.

Degree: Docteur es, Géosciences, Écologie, Paléontologie, Océanographie, 2015, Littoral

URL: http://www.theses.fr/2015DUNK0379

►

Le compartiment phytoplanctonique joue un rôle prépondérant dans les écosystèmes marins de par sa position comme principal producteur primaire et fixateur de carbone, mais aussi… (more)

▼

Le compartiment phytoplanctonique joue un rôle prépondérant dans les écosystèmes marins de par sa position comme principal producteur primaire et fixateur de carbone, mais aussi en raison de sa capacité de multiplication élevée, qui lui permet de réagir rapidement aux changements environnementaux et d'en faire un potentiel bio indicateur. La plupart des études antérieures ne se sont basées que sur des observations réalisées à basse fréquence, ou bien ne ciblant qu'une partie des groupes/espèces phytoplanctoniques entraînant une perte importante d'information sur la variabilité d'abondance et composition du phytoplancton. Cette thèse a été réalisée dans le cadre du projet européen transfrontalier DYMAPHY dont l'objectif principal visait à améliorer les connaissances et l'évaluation de la qualité des eaux marines de la Manche et de la Mer du Nord, à travers l'étude de l'ensemble du compartiment phytoplanctonique et ses paramètres complémentaires. Dans ce contexte, une approche à haute fréquence et/ou haute résolution spatiale, via l'utilisation de la cytométrie en flux semi-automatisée, a permis de mieux caractériser la variabilité spatiale et temporelle du phytoplancton en Manche Orientale. Pour cela on a utilisé 3 approches complémentaires dont les résultats principaux obtenus lors de ce travail de thèse sont les suivants : (i) une étude à haute fréquence, avec une analyse cytométrique toutes les 10 minutes, qui a permis de révéler une forte variabilité spatiale du phytoplancton, à une échelle régionale (Manche Orientale), dont l'assemblage communautaire n'était pas déterminé par l'hydrologie ; (ii) un suivi saisonnier de l'ensemble du spectre de taille des cellules phytoplanctoniques le long d'un gradient côte-large proche du détroit du Pas de Calais, qui a révélé, au-delà d'une certaine hétérogénéité spatiale, une forte variabilité temporelle permettant de définir les successions saisonnières et les principaux facteurs les régissant, à savoir la luminosité et la concentration en sels nutritifs ; (iii) un suivi de 3 ans sur un point fixe en eaux côtières, qui a permis de mettre en relation les traits de vie des groupes phytoplanctoniques avec l'environnement, afin de comprendre comment les communautés phytoplanctoniques s'assemblent en réponse à la variabilité environnementale. Les résultats ont montré une différenciation fonctionnelle liée à l'utilisation des ressources et des stratégies de croissance, associées à un gradient de ressources. Cette étude confirme notamment l'importance de "l'hypothèse du ratio de masse", qui prédit que les traits de vie de l'espèce la plus abondante au sein d'une communauté, seraient le moteur des processus les plus importants au sein d'un écosystème.

Phytoplankton micro-organisms play a key role in marine ecosystems as main primary producers, being responsible for most of carbon uptake, but also due to their fast division rates which allow them to effectively react to environmental changes and which make them potentially good bio-indicators. Most previous studies have based their…

Advisors/Committee Members: Christaki, Urania (thesis director), Artigas Pereira, Luis Felipe (thesis director).

Subjects/Keywords: Phytoplancton; Cytométrie en flux; CytoSense; Variabilité spatiale; Variabilité temporelle; Haute résolution; Phytoplankton; Fow cytometry; CytoSense; Spatial variability; Temporal variability; High resolution

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bonato, S. (2015). Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel. (Doctoral Dissertation). Littoral. Retrieved from http://www.theses.fr/2015DUNK0379

Chicago Manual of Style (16^th Edition):

Bonato, Simon. “Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel.” 2015. Doctoral Dissertation, Littoral. Accessed March 02, 2021. http://www.theses.fr/2015DUNK0379.

MLA Handbook (7^th Edition):

Bonato, Simon. “Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel.” 2015. Web. 02 Mar 2021.

Vancouver:

Bonato S. Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel. [Internet] [Doctoral dissertation]. Littoral; 2015. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2015DUNK0379.

Council of Science Editors:

Bonato S. Étude de la variabilité spatiale et temporelle des communautés phytoplanctoniques en Manche Orientale - Utilisation de la cytométrie en flux de scanning : Spatial and temporal variability of phytoplankton communities in the Eastern English Channel. [Doctoral Dissertation]. Littoral; 2015. Available from: http://www.theses.fr/2015DUNK0379

University of Arizona

11. Cisneros-Vazquez, Jose Manuel. The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge .

Degree: 2020, University of Arizona

URL: http://hdl.handle.net/10150/642108

► The effect of soil and water conservation structures (SWCS) conditions on vegetation in drylands is important because intact SWCS allow water storage that facilitates the… (more)

▼ The effect of soil and water conservation structures (SWCS) conditions on vegetation in drylands is important because intact SWCS allow water storage that facilitates the infiltration, increases soil moisture and enhances vegetation cover. In contrast, failed SWCS cause redirection of runoff, channel incision, and lateral head cutting (Nichols et al., 2017).The present study assessed the impact of SWCS on remotely-sensed vegetation cover and landscape fragmentation metrics during the wet and dry seasons for 2017, 2018, and 2019 at the Buenos Aires National Wildlife Refuge. Multispectral PlanetScope and UAV color imagery were used to develop Land Use Land Cover Change maps, the Normalized Difference Vegetation Index (NDVI), and the Fraction Vegetation Cover (FVC). Creating and analyzing a range of different buffers sizes for all three products, I examined which intact and failed SWCS had an impact on vegetation cover and where that happened. Land Cover maps created using a supervised Classification and Regression Trees (CART) algorithm had an overall accuracy higher than 90% for all maps used in the study. Post-classification change between dry and wet seasons detected an increase in the grass/desert vegetation and a decrease for the shrubs/trees class in 2017 and 2018. This decrease can be explained because a) the woody cover presents greater variations particularly in dry years, b) small shrubs without leaves are hard to distinguish in imagery and they can die off quicker in a drought situation, and c) the data and methodology selected for this study could not detect the small shrubs/trees class in 2017 and 2018. The t-test and ANOVA statistics for NDVI and FVC revealed differences between intact and failed SWCS in the floodplain and the upland. The landscape metrics demonstrated that SWCS’s effects on vegetation cover based on fragmentation metrics were more evident during the wet season for 2017 and 2018 than for the dry season. It is necessary to identify the value of the SWCS to wildlife to determine if the structures should be maintained when they begin to deteriorate because the SWCS are related to increasing species richness associated with expanding shrubs/trees vegetation cover. Advisors/Committee Members: Guertin, David P (advisor), Van Leeuwen, Willem J. (committeemember), Slack, Donald C. (committeemember).

Subjects/Keywords: Classification and Regression Trees; Fraction Vegetational Cover; High spatial resolution imagery; Land Cover Change; PlanetScope; UAVs

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APA (6^th Edition):

Cisneros-Vazquez, J. M. (2020). The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/642108

Chicago Manual of Style (16^th Edition):

Cisneros-Vazquez, Jose Manuel. “The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge .” 2020. Doctoral Dissertation, University of Arizona. Accessed March 02, 2021. http://hdl.handle.net/10150/642108.

MLA Handbook (7^th Edition):

Cisneros-Vazquez, Jose Manuel. “The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge .” 2020. Web. 02 Mar 2021.

Vancouver:

Cisneros-Vazquez JM. The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge . [Internet] [Doctoral dissertation]. University of Arizona; 2020. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10150/642108.

Council of Science Editors:

Cisneros-Vazquez JM. The Impact of Water and Soil Conservation Structures on Remotely Sensed Vegetation Cover During the Dry and Wet Seasons at the Buenos Aires National Wildlife Refuge . [Doctoral Dissertation]. University of Arizona; 2020. Available from: http://hdl.handle.net/10150/642108

University of Colorado

12. Longbotham, Nathan W. Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data.

Degree: PhD, Aerospace Engineering Sciences, 2012, University of Colorado

URL: https://scholar.colorado.edu/asen_gradetds/61

► The ability to automatically generate large-area land-use/land-cover (LU/LC) classification maps from very-high spatial resolution (VHR) satellite data is dependent on two capabilities: (1) the… (more)

▼ The ability to automatically generate large-area land-use/land-cover (LU/LC) classification maps from very-high spatial resolution (VHR) satellite data is dependent on two capabilities: (1) the ability to create a data model able to accurately classify satellite data into the appropriate surface types and (2) the ability to apply this model to the multiple images necessary to create a large-area VHR mosaic. This research describes methods for improving these capabilities by leveraging the unique characteristics of VHR in-track and composite multi-angle data. It is shown that new features can be extracted from both in-track and composite multi-angle data in order to improve classification performance. These features encode information extracted from the spatial and spectral variations of the multi-angle data, such as spectral fluctuation with view-angle and pixel height. This additional knowledge provides the capability to both improve image classification performance (29% in the demonstrated experiments) and include urban LU/LC classes, such as bridges, high-volume highways, and parking lots, that are normally difficult to identify in multispectral urban data. Additionally, methods that apply a multispectral classification model across multiple images (model portability) are also explored using the simplifying test cases of in-track and composite multi-angle data. The in-track results show that the portability of a multispectral model can be improved from no portability (losing all classification capability when applying the model across the multi-angle images) to a 10% reduction in kappa coefficient across the sequence of in-track images when physically based image normalization techniques are appropriately applied. The additional noise of seasonality limits the portability performance in the composite multi-angle sequence to an approximate reduction in kappa coefficient of 20% in the best cases. Advisors/Committee Members: William Emery, James Maslanik, Robert Leben, Cora Randall, Kumar Navulur.

Subjects/Keywords: image classification; image sequence analysis; model portability; multi-angle imagery; satellite data; very high spatial resolution; Aerospace Engineering; Remote Sensing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Longbotham, N. W. (2012). Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/asen_gradetds/61

Chicago Manual of Style (16^th Edition):

Longbotham, Nathan W. “Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data.” 2012. Doctoral Dissertation, University of Colorado. Accessed March 02, 2021. https://scholar.colorado.edu/asen_gradetds/61.

MLA Handbook (7^th Edition):

Longbotham, Nathan W. “Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data.” 2012. Web. 02 Mar 2021.

Vancouver:

Longbotham NW. Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data. [Internet] [Doctoral dissertation]. University of Colorado; 2012. [cited 2021 Mar 02]. Available from: https://scholar.colorado.edu/asen_gradetds/61.

Council of Science Editors:

Longbotham NW. Urban Image Classification Using Multi-Angle Very-High Resolution Satellite Data. [Doctoral Dissertation]. University of Colorado; 2012. Available from: https://scholar.colorado.edu/asen_gradetds/61

University of Louisville

13. Dong, Huihang, 1980-. Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement.

Degree: PhD, 2011, University of Louisville

URL: 10.18297/etd/364 ; https://ir.library.louisville.edu/etd/364

► Cardiac mapping has become an important area of research for understanding the mechanisms responsible for cardiac arrhythmias and the associated diseases. Current technologies for measuring… (more)

▼ Cardiac mapping has become an important area of research for understanding the mechanisms responsible for cardiac arrhythmias and the associated diseases. Current technologies for measuring electrical potentials on the surface of the heart are limited due to poor spatial resolution, localization issues, signal distortion due to noise, tissue damage, etc. Therefore, the purpose of this study is to design, develop, characterize and investigate a custom-made microfabricated, polyimide-based, flexible Thin-Film MicroElectrode Array (TFMEA) that is directly interfaced to an integrated Signal Conditioning Microchip (SCM) to record cardiac surface potentials on the cellular level to obtain high spatial resolution Surface Laplacian (SL) measurement. TFMEAs consisting of five fingers (Cover area = 4 mm2 and 16 mm2), which contained five individual microelectrodes placed in orthogonal directions (25-µm in diameter, 75-µm interelectrode spacing) to one another, were fabricated within a flexible polyimide substrate and capable of recording electrical activities of the heart on the order of individual cardiomyocytes. A custom designed SCM consisting of 25 channels of preamplification stages and second order band-pass filters was interfaced directly with the TFMEA in order to improve the signal-to-noise ratio (SNR) characteristics of the high spatial resolution recording data. Metrology characterization using surface profilometry and high resolution Scanning Electron Microscope (SEM) indicated the geometry of fabricated TFMEAs closely matched the design parameters < 0.4%). The DC resistances of the 25 individual micro electrodes were consistent (1.050 ± 0.026 kO). The simulation and testing results of the SCM verified the pre-amplification and filter stages met the designed gain and frequency parameters within 2.96%. The functionality of the TFMEA-SCM system was further characterized on a TX 151 conductive gel. The characterization results revealed that the system functionality was sufficient for high spatial cardiac mapping. In vivo testing results clearly demonstrated feasibility of using the TFMEA-SCM system to obtain cellular level SL measurements with significantly improved the SNRs during normal sinus rhythm and Ventricular Fibrillation (VF). Local activation times were detected via evaluating the zero crossing of the SL electro grams, which coincided with the gold standard (dV/dt)min of unipolar electro grams within ± 1%. The in vivo transmembrane current densities calculated from the high spatial resolution SLs were found to be significantly higher than the transmembrane current densities computed using electrodes with higher interelectrode spacings. In conclusion, the custom-made TFMEASCM systems demonstrated feasibility as a tool for measuring cardiac potentials and to perform high resolution cardiac mapping experiments. Advisors/Committee Members: Keynton, Robert S..

Subjects/Keywords: MicroElectrode Array; High spatial resolution; Signal Conditioning Microchip; Cardiac mapping; Surface Laplacian; Signal-to-noise ratio

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APA (6^th Edition):

Dong, Huihang, 1. (2011). Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement. (Doctoral Dissertation). University of Louisville. Retrieved from 10.18297/etd/364 ; https://ir.library.louisville.edu/etd/364

Chicago Manual of Style (16^th Edition):

Dong, Huihang, 1980-. “Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement.” 2011. Doctoral Dissertation, University of Louisville. Accessed March 02, 2021. 10.18297/etd/364 ; https://ir.library.louisville.edu/etd/364.

MLA Handbook (7^th Edition):

Dong, Huihang, 1980-. “Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement.” 2011. Web. 02 Mar 2021.

Vancouver:

Dong, Huihang 1. Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement. [Internet] [Doctoral dissertation]. University of Louisville; 2011. [cited 2021 Mar 02]. Available from: 10.18297/etd/364 ; https://ir.library.louisville.edu/etd/364.

Council of Science Editors:

Dong, Huihang 1. Design, characterization and testing of a thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement. [Doctoral Dissertation]. University of Louisville; 2011. Available from: 10.18297/etd/364 ; https://ir.library.louisville.edu/etd/364

University of New South Wales

14. Richards, Eric Wesley. The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system.

Degree: Surveying & Spatial Information Systems, 2009, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/43730 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:5327/SOURCE02?view=true

► The past years has seen the advent of the availability of high resolution commercial satellite imagery. This study shows that whilst high resolution commercial satellite… (more)

Subjects/Keywords: commerical; imagery; satellite; high; resolution; ikonos; GIS; spatial

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APA (6^th Edition):

Richards, E. W. (2009). The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/43730 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:5327/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Richards, Eric Wesley. “The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system.” 2009. Masters Thesis, University of New South Wales. Accessed March 02, 2021. http://handle.unsw.edu.au/1959.4/43730 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:5327/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Richards, Eric Wesley. “The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system.” 2009. Web. 02 Mar 2021.

Vancouver:

Richards EW. The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system. [Internet] [Masters thesis]. University of New South Wales; 2009. [cited 2021 Mar 02]. Available from: http://handle.unsw.edu.au/1959.4/43730 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:5327/SOURCE02?view=true.

Council of Science Editors:

Richards EW. The use of high resolution satellite data (IKONOS) in the establishment and maintenance of an urban geographical information system. [Masters Thesis]. University of New South Wales; 2009. Available from: http://handle.unsw.edu.au/1959.4/43730 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:5327/SOURCE02?view=true

15. Lang, Marc. Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats.

Degree: Docteur es, Géomatique, 2019, Paris, AgroParisTech

URL: http://www.theses.fr/2019AGPT0003

► La préservation de la biodiversité est un enjeu prioritaire, identifié aussi bien au niveau national qu’au niveau européen et international. L’hétérogénéité spatiale des milieux naturels… (more)

▼ La préservation de la biodiversité est un enjeu prioritaire, identifié aussi bien au niveau national qu’au niveau européen et international. L’hétérogénéité spatiale des milieux naturels est l’une des composantes clefs pour l’étude de la biodiversité et permet de comprendre le fonctionnement des écosystèmes. Le bassin Méditerranéen est un hotspot de biodiversité pour lequel le lien entre biodiversité et hétérogénéité spatiale des paysages s’illustre particulièrement bien. Les milieux méditerranéens s'organisent en mosaïques hétérogènes de quatre strates verticales: le sol nu, l’herbe, les ligneux bas et les ligneux hauts. La biodiversité de ces milieux est aujourd'hui menacée par une fermeture de milieux naturels qui entraîne la disparition de certains habitats et l’homogénéisation des paysages, homogénéisation qui entraîne elle-même une augmentation des risques d’incendies.Cette thèse se propose de développer des indices caractérisant l’hétérogénéité spatiale des milieux naturels dans un contexte méditerranéen à partir d’images de télédétection à très haute résolution. Parmi les différentes méthodes permettant de caractériser l'hétérogénéité, la méthode FOTO (FOurier Based Textural Ordination) est particulièrement intéressante car elle produit de façon non supervisée un nombre limité de gradients de texture non corrélés, à partir desquels il est possible de décrire les variations continues de l’hétérogénéité spatiale, et ce, à plusieurs échelles spatiales. Ainsi le premier objectif de cette thèse est de tester le potentiel des gradients de texture issus de la méthode FOTO pour la caractérisation de l’hétérogénéité spatiale relative aux quatre strates verticales caractéristiques des milieux méditerranéens. Le deuxième objectif est de tester la sensibilité de l’approche développée à des facteurs techniques et environnementaux, afin de s’assurer de sa réplicabilité pour favoriser son utilisation dans un contexte opérationnel de suivi des milieux méditerranéens. Enfin, le dernier objectif est de valider la pertinence écologique des indices d’hétérogénéité développés à travers un cas d’application~: la caractérisation de la répartition spatiale d’espèces d’oiseaux sensibles à l’hétérogénéité de la végétation.Combinés avec un indice de végétation, le NDVI, les indices de texture issus de la méthode FOTO ont pu être interprétés en termes d'hétérogénéité spatiale et ont permis de caractériser la composition et l'organisation des quatre strates verticales étudiées. Ces indices sont influencés par la présence de surfaces anthropisées comme les cultures ainsi que par la nature de l'information radiométrique des images de télédétection utilisées, qui impacte le contraste apparent des strates de végétation. Ainsi, l'application de la méthode sur une bande panchromatique est plus sensible aux motifs liés à l'alternance de sol nu et d'herbe tandis que l'application de la méthode sur le NDVI est plus sensible aux motifs lié à l'alternance des ligneux avec la strate herbacée. Enfin, nous avons montré l’intérêt de l’approche… Advisors/Committee Members: Baghdadi, Nicolas (thesis director), Luque, Sandra (thesis director).

Subjects/Keywords: Hétérogénéité spatiale; Télédétection; Texture; Très haute résolution spatiale; Biodiversité; Paysages méditerranéens; Conservation de l’avifaune; Spatial heterogeneity; Remote sensing; Texture; Very high spatial resolution; Biodiversity; Mediterranean landscape; Birds conservation; 577.38; 551.028

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lang, M. (2019). Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats. (Doctoral Dissertation). Paris, AgroParisTech. Retrieved from http://www.theses.fr/2019AGPT0003

Chicago Manual of Style (16^th Edition):

Lang, Marc. “Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats.” 2019. Doctoral Dissertation, Paris, AgroParisTech. Accessed March 02, 2021. http://www.theses.fr/2019AGPT0003.

MLA Handbook (7^th Edition):

Lang, Marc. “Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats.” 2019. Web. 02 Mar 2021.

Vancouver:

Lang M. Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats. [Internet] [Doctoral dissertation]. Paris, AgroParisTech; 2019. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2019AGPT0003.

Council of Science Editors:

Lang M. Caractérisation de l’hétérogénéité spatiale de milieux naturels à partir d’imagerie optique très haute résolution spatiale : cas d’application aux milieux méditerranéens de garrigue : Characterization of the spatial heterogeneity of natural environments from very high spatial resolution optical imagery : an application case to garrigue Mediterranean habitats. [Doctoral Dissertation]. Paris, AgroParisTech; 2019. Available from: http://www.theses.fr/2019AGPT0003

16. Belarte, Bruno. Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis.

Degree: Docteur es, Informatique, 2014, Université de Strasbourg

URL: http://www.theses.fr/2014STRAD011

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Les nouveaux capteurs satellitaires permettent l'acquisition d'images d'un très haut niveau de détail à des cadences élevées, produisant ainsi une importante masse de données. Le… (more)

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Les nouveaux capteurs satellitaires permettent l'acquisition d'images d'un très haut niveau de détail à des cadences élevées, produisant ainsi une importante masse de données. Le traitement manuel de ces données étant devenu impossible, de nouveaux outils sont nécessaires afin de les traiter automatiquement. Des algorithmes de segmentation efficaces sont nécessaires pour extraire des objets d'intérêt de ces images. Cependant les segments produits ne correspondent pas aux objets d'intérêt, rendant difficile l'utilisation de connaissances expertes.Dans le cadre de cette thèse nous proposons de changer le niveau d'interprétation d'une image afin de voir les objets d'intérêt pour l'expert comme des objets composés par des segments. Pour cela, nous avons mis en place un processus d'apprentissage multi-niveaux dans le but d'apprendre ces règles de composition. Une règle de composition ainsi apprise peut ensuite être utilisée pour extraire les objets d'intérêt correspondant. Dans un second temps, nous proposons d'utiliser l'algorithme d'apprentissage de règles de composition comme première étape d'une approche montante-descendante. Cette chaîne de traitement a pour objectif d'améliorer la classification à partir des informations contextuelles et de connaissances expertes. Des objets composés de plus haut niveau sémantique sont extraits à partir de règles apprises ou fournies par l'expert, et cette nouvelle information est utilisée pour mettre à jour la classification des objets aux niveaux inférieurs. L'ensemble de ces travaux ont été testés et validés sur des images Pléiades représentant la ville de Strasbourg. Les résultats obtenus montrent l'efficacité de l'apprentissage de règles de composition pour faire le lien entre connaissance experte et segmentation, ainsi que l'intérêt de l'utilisation d'informations contextuelles dans l'analyse d'images de télédétection à très haute résolution spatiale.

The new remote sensors allow the acquisition of very high spatial resolution images at high speeds, thus producing alarge volume of data. Manual processing of these data has become impossible, new tools are needed to process them automatically. Effective segmentation algorithms are required to extract objects of interest of these images. However, the produced segments do not match to objects of interest, making it difficult to use expert knowledge.In this thesis we propose to change the level of interpretation of an image in order to see the objects of interest of the expert as objects composed of segments. For this purpose, we have implemented a multi-level learning process in order to learn composition rules. Such a composition rule can then be used to extract corresponding objects of interest.In a second step, we propose to use the composition rules learning algorithm as a first step of a bottom-up top-down approach. This processing chain aims at improving the classification from contextual knowledge and expert information.Composed objects of higher semantic level are extracted from learned rules or rules provided by the…

Advisors/Committee Members: Wemmert, Cédric (thesis director), Weber, Christiane (thesis director).

Subjects/Keywords: Analyse d'images; Télédétection; Image à très haute résolution spatiale; Classification guidée par la connaissance; Image analysis; Remote sensing; Very high spatial resolution image; Knowledge driven classification; 006.3; 621.367

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Belarte, B. (2014). Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis. (Doctoral Dissertation). Université de Strasbourg. Retrieved from http://www.theses.fr/2014STRAD011

Chicago Manual of Style (16^th Edition):

Belarte, Bruno. “Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis.” 2014. Doctoral Dissertation, Université de Strasbourg. Accessed March 02, 2021. http://www.theses.fr/2014STRAD011.

MLA Handbook (7^th Edition):

Belarte, Bruno. “Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis.” 2014. Web. 02 Mar 2021.

Vancouver:

Belarte B. Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis. [Internet] [Doctoral dissertation]. Université de Strasbourg; 2014. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2014STRAD011.

Council of Science Editors:

Belarte B. Extraction, analyse et utilisation de relations spatiales entre objets d'intérêt pour une analyse d'images de télédétection guidée par des connaissances du domaine : Extraction, analysis and use of spatial relations between objects of interest for a knowledge driven remote sensing image analysis. [Doctoral Dissertation]. Université de Strasbourg; 2014. Available from: http://www.theses.fr/2014STRAD011

17. Martins, Leandro Guimarães Bais. Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana.

Degree: Mestrado, Hidráulica e Saneamento, 2012, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/18/18138/tde-03092012-163957/ ;

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Nos centros urbanos, as precipitações sempre estiveram ligadas a problemas como inundações e propagação de doenças. Para solucioná-los, é comum a realização de obras hidráulicas… (more)

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Nos centros urbanos, as precipitações sempre estiveram ligadas a problemas como inundações e propagação de doenças. Para solucioná-los, é comum a realização de obras hidráulicas nos sistemas de drenagem urbanos. Para tanto, deve-se conhecer as condições da bacia hidrográfica e as consequências que qualquer alteração no ambiente pode causar. Portanto, modelos hidrológicos são utilizados na previsão do comportamento das bacias frente a eventos de precipitação, aumentando a eficácia das obras e diminuindo os riscos associados a estas. Para o uso de modelos, são necessários diversos parâmetros hidrológicos referentes à bacia, tais como área de drenagem, comprimento e declividade dos talvegues, tipo de cobertura de solo etc. Com o avanço da tecnologia, a determinação destes torna-se cada vez mais precisa, bem como os modelos utilizados, trazendo o Sistema de Informações Geográficas (SIG) e o sensoriamento remoto como poderosas ferramentas de apoio a estudos hidrológicos. Neste trabalho, aplicou-se o processo de classificação automática supervisionada pelo método da Análise Orientada a Objeto a uma imagem de satélite de alta resolução da bacia hidrográfica do córrego do Gregório, para caracterizar sua cobertura de solo e determinar os parâmetros hidrológicos número de deflúvio (CN, pelo método do SCS), grau de vegetação (PP), área (A), comprimento (L) e declividades dos talvegues (S) das sub-bacias que compõem a bacia, para as quais os resultados obtidos foram bastante satisfatórios. Por fim, atualizou-se o modelo hidrológico EESC (1993), referente ao sistema de macrodrenagem de São Carlos, obtendo-se hidrogramas finais com diferenças, em relação ao modelo original, de até 33,96% para vazão de pico (Qp), 77,78% para tempo de pico (tp) e 29,86% para volume total de escoamento.

In urban centers, precipitation always been related to problems such as floods and spread of disease. To solve them, it is common to make hydraulic interventions in the urban drainage systems. For this, it is necessary to know the conditions of the watershed and the consequences that any change in the environment can cause. Therefore, hydrological models are used to predict the river behavior in opposite to precipitation events, increasing the efficiency of the hydraulic interventions and reducing the associated risks to these. For the use of models, it is necessary to have several hydrological parameters related to the basin such as drainage area, river length, slope of the thalweg, type of soil cover etc. Trough the technological advancement, the parameter determination becomes more accurate as well as the models, and the Geographic Information System (GIS) and remote sensing appear as powerful tools to support hydrological studies. In this study, we have applied the automatic supervised classification process by the Object-Oriented Analysis method to a high resolution satellite image of the córrego do Gregório watershed, to classify soil coverage and to determine the hydrological parameters curve-number (CN by the SCS method), vegetation degree…

Advisors/Committee Members: Porto, Rodrigo de Melo.

Subjects/Keywords: Alta resolução espacial; Bacia hidrográfica urbana; Cobertura do solo; Curve number; GIS; High spatial resolution; Imagem de satélite; Número de deflúvio; Satellite image; SIG; Soil cover; Urban watershed

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Martins, L. G. B. (2012). Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/18/18138/tde-03092012-163957/ ;

Chicago Manual of Style (16^th Edition):

Martins, Leandro Guimarães Bais. “Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana.” 2012. Masters Thesis, University of São Paulo. Accessed March 02, 2021. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-03092012-163957/ ;.

MLA Handbook (7^th Edition):

Martins, Leandro Guimarães Bais. “Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana.” 2012. Web. 02 Mar 2021.

Vancouver:

Martins LGB. Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana. [Internet] [Masters thesis]. University of São Paulo; 2012. [cited 2021 Mar 02]. Available from: http://www.teses.usp.br/teses/disponiveis/18/18138/tde-03092012-163957/ ;.

Council of Science Editors:

Martins LGB. Determinação de parâmetros hidrológicos por técnicas de sensoriamento remoto em macrodrenagem urbana. [Masters Thesis]. University of São Paulo; 2012. Available from: http://www.teses.usp.br/teses/disponiveis/18/18138/tde-03092012-163957/ ;

Lincoln University

18. Senay, Senait Dereje. Modelling invasive species-landscape interactions using high resolution, spatially explicit models.

Degree: 2014, Lincoln University

URL: http://hdl.handle.net/10182/6385

► Invasive species can cause a wide range of damages from destruction of indigenous and productive ecosystems to introduction of vectors to human and animal diseases.… (more)

▼ Invasive species can cause a wide range of damages from destruction of indigenous and productive ecosystems to introduction of vectors to human and animal diseases. In many countries, measures taken to prevent the establishment of invasive species are known to significantly reduce the potential damage that might be caused. As part of those measures, species distribution models (SDMs) are used to predict suitable habitats for highly invasive species so that appropriate strategies to prevent their establishment and further spread can be designed. When species distribution models (SDMs) are used for practical applications, accounting for their uncertainty becomes a priority. However, despite their wide use, reporting the uncertainty of SDM predictions is not well practiced. The primary aim of the research in this thesis was to identify and quantify uncertainty associated with model predictions of species distributions. The major research question was, why do different models give dissimilar predictions for the same species and/or location? Discrepancy among model results is one of the major issues that affects the perception of their reliability and their capacity to inform policy decisions. In this thesis, the effect of factors considered to influence model performance and drive uncertainty in model predictions, was investigated. The particular factors were, 1) pseudo absence selection, 2) the individual and combined effect of predictor data, dimension reduction methods, and model types on model performance, and, 3) variation within the occurrence data for a given species. Following these investigations, improved procedures developed in this research were used to, 1) investigate the use of a simple mechanistic model to enhance results of correlative species distribution models in a hybrid approach and 2) improve a dispersal model that can be used to research the potential spread of an invasive species once it has established in a new habitat. A multi-factor study to investigate the effect of pseudo-absence selection on model performance showed that not only pseudo-absences affect individual models but also consensus among model predictions. To improve individual model performance as well as model consensus, an improved pseudo-absence selection method was developed that balances the geographic and environmental space for selecting pseudo-absences. The investigation of the individual and combined effect of predictor data, dimension reduction methods and model types on model performance, showed that the type of model is a major factor that affects model performance. The results of this research showed that the combination of appropriate explanatory variables and dimension reduction could increase individual model performance as well as model consensus. Additionally, novel indices that can be used to assess internal characteristics of the environmental predictors and data-pre-processing methods for optimized model performance, were developed. Another important factor that contributes to model uncertainty is the…

Subjects/Keywords: SDMs; invasive species; dispersal; spatial modelling; high resolution; model uncertainty; dimension reduction; 050103 Invasive Species Ecology; 080110 Simulation and Modelling; 080109 Pattern Recognition and Data Mining; 060302 Biogeography and Phylogeography

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Senay, S. D. (2014). Modelling invasive species-landscape interactions using high resolution, spatially explicit models. (Thesis). Lincoln University. Retrieved from http://hdl.handle.net/10182/6385

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Senay, Senait Dereje. “Modelling invasive species-landscape interactions using high resolution, spatially explicit models.” 2014. Thesis, Lincoln University. Accessed March 02, 2021. http://hdl.handle.net/10182/6385.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Senay, Senait Dereje. “Modelling invasive species-landscape interactions using high resolution, spatially explicit models.” 2014. Web. 02 Mar 2021.

Vancouver:

Senay SD. Modelling invasive species-landscape interactions using high resolution, spatially explicit models. [Internet] [Thesis]. Lincoln University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10182/6385.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Senay SD. Modelling invasive species-landscape interactions using high resolution, spatially explicit models. [Thesis]. Lincoln University; 2014. Available from: http://hdl.handle.net/10182/6385

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

19. Retsilidou, Olga. Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης.

Degree: 2017, University of the Aegean; Πανεπιστήμιο Αιγαίου

URL: http://hdl.handle.net/10442/hedi/41190

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In the present PhD thesis, high resolution spatial satellite imagery was used to map vegetation in order to assign fuel characteristics to each vegetation class.… (more)

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In the present PhD thesis, high resolution spatial satellite imagery was used to map vegetation in order to assign fuel characteristics to each vegetation class. High spatial resolution satellite imagery of two seasons from the new generation multispectral imaging system RapidEye were used for mapping vegetation in five study areas: Rhodes, Kastoria, Chalkidiki, West Attica and Messinia (≈10,000 km2). Initially, a spatially adaptive classification approach was designed. The classification was based on the segmentation of the study areas into individual spatial processing entities. Then, the satellite images were stratified into natural and man-made environment areas via a semi-automatic object-oriented classification approach. For the classification of the natural vegetation a "fuzzy" or "soft" classification was applied. Finally, a post-classification comparison using the Normalized Vegetation Index (NDVI) was performed to map bi –seasonal natural vegetation change. To evaluate the accuracy of the classifications, a random sampling scheme was selected. The overall accuracy ranges between 78.5% (Chalkidiki) and 89.5% (Kastoria) (88% Rodos, 87.4% Western Athens, 84.7 Messinia), while Cohen’s Kappa values calculated as equal to 0.86 for Rhodes, 0.88 for Kastoria, 0.74 for Chalkidiki, 0.85 for West Attica and 0.79 for Messinia. The results show that the combination of Remote Sensing and GIS techniques developed in this PhD thesis is an effective approach for mapping natural vegetation in large areas with complex and heterogeneous landscapes such as in Greece.

Στην παρούσα διδακτορική διατριβή, χρησιμοποιήθηκαν δορυφορικές εικόνες υψηλής χωρικής ανάλυσης για τη χαρτογράφηση της βλάστησης με σκοπό την εκχώρηση των χαρακτηριστικών των καυσίμων σε κάθε κατηγορία βλάστησης.Χρησιμοποιήθηκαν δορυφορικά δεδομένα υψηλής χωρικής ανάλυσης του συστήματος πολυφασματικής απεικόνισης νέας γενιάς RapidEye δύο εποχών για τη χαρτογράφηση της βλάστησης σε 5 περιοχές μελέτης: τη Ρόδο, την Καστοριά, τη Χαλκιδική (με το Άγιο Όρος), τη Δυτική Αττική και τη Μεσσηνία. (≈10,000 χλμ2). Αρχικά, σχεδιάστηκε μια χωρικά προσαρμοσμένη προσέγγιση για την ταξινόμηση της βλάστησης.Η ταξινόμηση βασίστηκε στην τμηματοποίηση των περιοχών μελέτης σε επιμέρους χωρικές οντότητες επεξεργασίας. Ακολούθησε η εφαρμογή μιας ημί - αυτόματης προσέγγισης αντικειμενοστραφούς ταξινόμησης στην κλίμακα φυσικό / ανθρωπογενές περιβάλλον.Για την ταξινόμηση της φυσικής βλάστησης εφαρμόστηκε μια «ασαφής» ή «μαλακή» ταξινόμηση.Τέλος, πραγματοποιήθηκε ανίχνευση των αλλαγών της φυσικής βλάστησης έπειτα από τη σύγκριση μετά-ταξινόμησης του κανονικοποιημένου δείκτη βλάστησης (NDVI).Για την αξιολόγηση της ακρίβειας των ταξινομήσεων επιλέχθηκε ένα σχήμα τυχαίας δειγματοληψίας. Η συνολική ακρίβεια κυμαίνεται μεταξύ 78,5% (Χαλκιδική) και 89,5%(Καστοριά) (88% Ρόδος, 87,4% Δυτική Αττική, 84,7 Μεσσηνία), ενώ οι τιμές Kappa του Cohen υπολογίστηκαν ίσες με 0,86 για τη Ρόδο, 0,88 για την Καστοριά, 0,74 για τη Χαλκιδική, 0,85 για τη Δυτική Αττική και 0,79 για την Μεσσηνία. Τα αποτελέσματα…

Subjects/Keywords: Ταξινόμηση; Βλάστηση; Δορυφορική τηλεπισκόπηση; Υψηλή χωρική ανάλυση; Χαρτογράφηση καύσιμης ύλης; Κανονικοποιημένος δείκτης βλάστησης; Κατάτμηση; Ασαφής ταξινόμηση; Classification; Vegetation; High spatial resolution; Fuel mapping; RapidEye; NDVI; Segmentation; Fuzzy or ‘soft’ classification

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Retsilidou, O. (2017). Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης. (Thesis). University of the Aegean; Πανεπιστήμιο Αιγαίου. Retrieved from http://hdl.handle.net/10442/hedi/41190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Retsilidou, Olga. “Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης.” 2017. Thesis, University of the Aegean; Πανεπιστήμιο Αιγαίου. Accessed March 02, 2021. http://hdl.handle.net/10442/hedi/41190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Retsilidou, Olga. “Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης.” 2017. Web. 02 Mar 2021.

Vancouver:

Retsilidou O. Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης. [Internet] [Thesis]. University of the Aegean; Πανεπιστήμιο Αιγαίου; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10442/hedi/41190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Retsilidou O. Διερεύνηση τεχνικών τηλεπισκόπησης και ανάπτυξη μεθοδολογίας για την ακριβή εκτίμηση της καύσιμης ύλης με βάση τη βλάστηση χρησιμοποιώντας δύο εποχικές δορυφορικές εικόνες υψηλής ανάλυσης: εφαρμογή σε δεδομένα μεγάλης έκτασης. [Thesis]. University of the Aegean; Πανεπιστήμιο Αιγαίου; 2017. Available from: http://hdl.handle.net/10442/hedi/41190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Venard, Cédric. La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools.

Degree: Docteur es, Géographie, aménagement et urbanisme, 2012, Université Lumière – Lyon II

URL: http://www.theses.fr/2012LYO20092

► Les régions sèches situées à la périphérie des déserts sont généralement peuplées et mises en valeur sur un mode sédentaire. Elles partagent cependant avec les… (more)

▼ Les régions sèches situées à la périphérie des déserts sont généralement peuplées et mises en valeur sur un mode sédentaire. Elles partagent cependant avec les milieux désertiques des conditions environnementales qui les rendent sensibles et fragiles. Cela implique de bien connaître les mécanismes de leurs milieux, a fortiori dans un contexte de désertification qui augmente le risque environnemental. Celui-ci est souvent évalué par le suivi de la végétation, mais l’expérience de terrain montre que les formes éoliennes pourraient apporter des compléments utiles. La morphodynamique éolienne joue en effet un rôle non négligeable dans le risque environnemental en régions sèches. Si, dans les systèmes désertiques, l’influence des activités humaines sur l’évolution des formes éoliennes de grande taille est réduite, dans les régions sèches non-désertiques, elles sont de plus petite dimension et leur vitesse de réaction aux changements des conditions du milieu est élevée. Elles sont de surcroît liées aux autres composants du paysage, avec lesquels elles interagissent fortement, et leur fonctionnement peut être corrélé aux modalités d’exploitation du milieu. Cela en fait des indicateurs pertinents et leur suivi doit donc être conçu dans une approche systémique appuyée sur une bonne maîtrise des fondements physiques de l’étude de la morphodynamique éolienne qui sont présentés en ouverture de ce mémoire. Différents outils et concepts élaborés dans les contextes désertiques, parmi lesquels les déplacements potentiels sableux et la densité d’obstacle, sont détaillés. Les effets paysagers de la morphodynamique éolienne sont illustrés par divers exemples. Son intégration dans les études de suivi est alors questionnée pour démontrer que de nouvelles approches peuvent être explorées. Les propositions faites s’intéressent en particulier à un objet, la forme éolienne d’obstacle, qui reste mal connu malgré la place qu’il tient dans les paysages des régions sèches. Une grille de caractérisation fine de cet objet est définie, à partir de laquelle un protocole de quantification et d’évaluation qualitative nécessaire à la production d’indicateurs peut être élaboré. Pour cela, les méthodes développées doivent être reproductibles et minimiser la complexité et les coûts de mise en oeuvre. Dans le domaine de la télédétection, la facilité d’utilisation et la précision des images du Pixy, paramoteur léger à voile souple, démontrent le potentiel des vecteurs de type drone. L’intérêt des satellites à très haute résolution spatiale pour, notamment, la généralisation d’études ciblées est également démontré. Les images produites correspondent notamment à une échelle intermédiaire qui faisait jusqu’alors défaut. Parmi les fournisseurs d’images très haute résolution spatiale, Google Earth est une alternative possible des fournisseurs commerciaux. La disponibilité de plus en plus grande d’images de résolution très élevée offre des perspectives d’applications dans des domaines variés. Leur exploitation présente cependant des contraintes que la Morphologie… Advisors/Committee Members: Callot, Yann (thesis director).

Subjects/Keywords: Formes éoliennes d’obstacle; Observatoires; Imagerie très haute résolution; Drone; Morphologie mathématique; Anchored dunes; Environmental survey; Very high spatial resolution images; Unmanned platform; Mathematical morphology

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APA (6^th Edition):

Venard, C. (2012). La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools. (Doctoral Dissertation). Université Lumière – Lyon II. Retrieved from http://www.theses.fr/2012LYO20092

Chicago Manual of Style (16^th Edition):

Venard, Cédric. “La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools.” 2012. Doctoral Dissertation, Université Lumière – Lyon II. Accessed March 02, 2021. http://www.theses.fr/2012LYO20092.

MLA Handbook (7^th Edition):

Venard, Cédric. “La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools.” 2012. Web. 02 Mar 2021.

Vancouver:

Venard C. La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools. [Internet] [Doctoral dissertation]. Université Lumière – Lyon II; 2012. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2012LYO20092.

Council of Science Editors:

Venard C. La morphodynamique éolienne en régions sèches : des échelles spatiales et temporelles aux outils : Aeolian morphodynamics in drylands : spatial and temporal scales, associated tools. [Doctoral Dissertation]. Université Lumière – Lyon II; 2012. Available from: http://www.theses.fr/2012LYO20092

Indian Institute of Science

21. Vijay Kumar, V. Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method.

Degree: MSc Engg, Faculty of Engineering, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3282

► A high resolution spectrally accurate three-dimensional flow solver is developed in order to simulate convection dominated fluid flows. The governing incompressible Navier Stokes equations along… (more)

Subjects/Keywords: Numerical Simulation; Convection; High Resolution Spectroscopy; Rayleigh Bernard Convection; Fluid Flow - Numerical Simulation; Spatial Discretization; Poisson Solver; Navier Stokes Solver; Fluid Flow Solver; Fluid Dynamics; Taylor Couette Flow; Fluid Mechanics

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APA (6^th Edition):

Vijay Kumar, V. (2018). Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3282

Chicago Manual of Style (16^th Edition):

Vijay Kumar, V. “Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method.” 2018. Masters Thesis, Indian Institute of Science. Accessed March 02, 2021. http://etd.iisc.ac.in/handle/2005/3282.

MLA Handbook (7^th Edition):

Vijay Kumar, V. “Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method.” 2018. Web. 02 Mar 2021.

Vancouver:

Vijay Kumar V. Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method. [Internet] [Masters thesis]. Indian Institute of Science; 2018. [cited 2021 Mar 02]. Available from: http://etd.iisc.ac.in/handle/2005/3282.

Council of Science Editors:

Vijay Kumar V. Numerical Simulation of Convection Dominated Flows using High Resolution Spectral Method. [Masters Thesis]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3282

22. J. Spinoni. 1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY.

Degree: 2010, Università degli Studi di Milano

URL: http://hdl.handle.net/2434/155260

► This PhD thesis focuses on the construction of monthly 30-arc-second resolution temperature, precipitation, and solar radiation 1961-90 climatologies for Italy and on the superimposition of… (more)

Subjects/Keywords: Climatology; High-Resolution Grids; Spatial Interpolation; Precipitation; Temperature; Solar Radiation; Climate Reconstruction; Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre

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APA (6^th Edition):

Spinoni, J. (2010). 1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY. (Thesis). Università degli Studi di Milano. Retrieved from http://hdl.handle.net/2434/155260

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Spinoni, J.. “1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY.” 2010. Thesis, Università degli Studi di Milano. Accessed March 02, 2021. http://hdl.handle.net/2434/155260.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Spinoni, J.. “1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY.” 2010. Web. 02 Mar 2021.

Vancouver:

Spinoni J. 1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY. [Internet] [Thesis]. Università degli Studi di Milano; 2010. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2434/155260.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Spinoni J. 1961-90 HIGH RESOLUTION TEMPERATURE, PRECIPITATION, AND SOLAR RADIATION CLIMATOLOGIES FOR ITALY. [Thesis]. Università degli Studi di Milano; 2010. Available from: http://hdl.handle.net/2434/155260

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Humboldt State University

23. McGovern, Ian Patrick. Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area.

Degree: MS, Natural Resources: Planning and Interpretation, 2008, Humboldt State University

URL: http://hdl.handle.net/2148/454

► The Whiskeytown National Recreation Area located west of Redding, California has a very diverse landscape and associated plant diversity. High resolution (1-meter) multispectral imagery was… (more)

Subjects/Keywords: GIS; Remote sensing; Multispectral imaging; LANDSAT; High resolution; Spatial analysis

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APA (6^th Edition):

McGovern, I. P. (2008). Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area. (Masters Thesis). Humboldt State University. Retrieved from http://hdl.handle.net/2148/454

Chicago Manual of Style (16^th Edition):

McGovern, Ian Patrick. “Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area.” 2008. Masters Thesis, Humboldt State University. Accessed March 02, 2021. http://hdl.handle.net/2148/454.

MLA Handbook (7^th Edition):

McGovern, Ian Patrick. “Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area.” 2008. Web. 02 Mar 2021.

Vancouver:

McGovern IP. Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area. [Internet] [Masters thesis]. Humboldt State University; 2008. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2148/454.

Council of Science Editors:

McGovern IP. Using Multiple Resolution Digital Images and GIS to determine vegetation sampling locations at Whiskeytown National Recreational Area. [Masters Thesis]. Humboldt State University; 2008. Available from: http://hdl.handle.net/2148/454

West Virginia University

24. Ramezan, Christopher A. Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data.

Degree: PhD, Geology and Geography, 2019, West Virginia University

URL: https://doi.org/10.33915/etd.3876 ; https://researchrepository.wvu.edu/etd/3876

► High spatial resolution (HR) (1m – 5m) remotely sensed data in conjunction with supervised machine learning classification are commonly used to construct land-cover classifications.… (more)

▼ High spatial resolution (HR) (1m – 5m) remotely sensed data in conjunction with supervised machine learning classification are commonly used to construct land-cover classifications. Despite the increasing availability of HR data, most studies investigating HR remotely sensed data and associated classification methods employ relatively small study areas. This work therefore drew on a 2,609 km2, regional-scale study in northeastern West Virginia, USA, to investigates a number of core aspects of HR land-cover supervised classification using machine learning. Issues explored include training sample selection, cross-validation parameter tuning, the choice of machine learning algorithm, training sample set size, and feature selection. A geographic object-based image analysis (GEOBIA) approach was used. The data comprised National Agricultural Imagery Program (NAIP) orthoimagery and LIDAR-derived rasters. Stratified-statistical-based training sampling methods were found to generate higher classification accuracies than deliberative-based sampling. Subset-based sampling, in which training data is collected from a small geographic subset area within the study site, did not notably decrease the classification accuracy. For the five machine learning algorithms investigated, support vector machines (SVM), random forests (RF), k-nearest neighbors (k-NN), single-layer perceptron neural networks (NEU), and learning vector quantization (LVQ), increasing the size of the training set typically improved the overall accuracy of the classification. However, RF was consistently more accurate than the other four machine learning algorithms, even when trained from a relatively small training sample set. Recursive feature elimination (RFE), which can be used to reduce the dimensionality of a training set, was found to increase the overall accuracy of both SVM and NEU classification, however the improvement in overall accuracy diminished as sample size increased. RFE resulted in only a small improvement the overall accuracy of RF classification, indicating that RF is generally insensitive to the Hughes Phenomenon. Nevertheless, as feature selection is an optional step in the classification process, and can be discarded if it has a negative effect on classification accuracy, it should be investigated as part of best practice for supervised machine land-cover classification using remotely sensed data. Advisors/Committee Members: Timothy Warner, Jamison Conley, Jamison Conley.

Subjects/Keywords: Remote Sensing; GEOBIA; NAIP; LIDAR; High Resolution; Machine Learning; Supervised Classification; Regional-Scale; Land-Cover Mapping; Geographic Information Sciences; Physical and Environmental Geography; Remote Sensing; Spatial Science; Theory and Algorithms

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APA (6^th Edition):

Ramezan, C. A. (2019). Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data. (Doctoral Dissertation). West Virginia University. Retrieved from https://doi.org/10.33915/etd.3876 ; https://researchrepository.wvu.edu/etd/3876

Chicago Manual of Style (16^th Edition):

Ramezan, Christopher A. “Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data.” 2019. Doctoral Dissertation, West Virginia University. Accessed March 02, 2021. https://doi.org/10.33915/etd.3876 ; https://researchrepository.wvu.edu/etd/3876.

MLA Handbook (7^th Edition):

Ramezan, Christopher A. “Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data.” 2019. Web. 02 Mar 2021.

Vancouver:

Ramezan CA. Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data. [Internet] [Doctoral dissertation]. West Virginia University; 2019. [cited 2021 Mar 02]. Available from: https://doi.org/10.33915/etd.3876 ; https://researchrepository.wvu.edu/etd/3876.

Council of Science Editors:

Ramezan CA. Object-Based Supervised Machine Learning Regional-Scale Land-Cover Classification Using High Resolution Remotely Sensed Data. [Doctoral Dissertation]. West Virginia University; 2019. Available from: https://doi.org/10.33915/etd.3876 ; https://researchrepository.wvu.edu/etd/3876

25. Beguet, Benoît. Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images.

Degree: Docteur es, Science et technologie (sciences de la terre, sciences de l'eau, sciences de l'image), 2014, Université Michel de Montaigne – Bordeaux III

URL: http://www.theses.fr/2014BOR30041

►

Les images à très haute résolution spatiale (THR) telles que les images Pléiades (50 cm en Panchromatique, 2m en multispectral) rendent possible une description fine… (more)

▼

Les images à très haute résolution spatiale (THR) telles que les images Pléiades (50 cm en Panchromatique, 2m en multispectral) rendent possible une description fine de la structure forestière (distribution et dimensions des arbres) à l'échelle du peuplement, en exploitant la relation entre la structure spatiale des arbres et la texture d'image quand la taille du pixel est inférieure à la dimension des arbres. Cette attente répond au besoin d'inventaire spatialisé de la ressource forestière à l'échelle du peuplement et de ses changements dus à la gestion forestière, à l'aménagement du territoire ou aux événements catastrophiques. L'objectif est double: (1) évaluer le potentiel de la texture d'images THR pour estimer les principales variables de structure forestière (diamètre des couronnes, diamètre du tronc, hauteur, densité ou espacement des arbres) à l'échelle du peuplement; (2) sur ces bases, classer les données image, au niveau pixel, par types de structure forestière afin de produire l'information spatialisée la plus fine possible. Les principaux développements portent sur l'automatisation du paramètrage, la sélection de variables, la modélisation par régression multivariable et une approche de classification par classifieurs d'ensemble (Forêts Aléatoires ou Random Forests). Ils sont testés et évalués sur deux sites de la forêt landaise de pin maritime à partir de trois images Pléiades et une Quickbird, acquises dans diverses conditions (saison, position du soleil, angles de visée). La méthodologie proposée est générique. La robustesse aux conditions d'acquisition des images est évaluée. Les résultats montrent que des variations fines de texture caractéristiques de celles de la structure forestière sont bien identifiables. Les performances en terme d'estimation des variables forestières (RMSE) : ~1.1 m pour le diamètre des couronnes, ~3 m pour la hauteur des arbres ou encore ~0.9 m pour leur espacement, ainsi qu'en cartographie des structures forestières (~82 % de taux de bonne classification pour la reconnaissance des 5 classes principales de la structure forestière) sont satisfaisantes d'un point de vue opérationnel. L'application à des images multi-annuelles permettra d'évaluer leur capacité à détecter et cartographier des changements tels que coupe forestière, mitage urbain ou encore dégâts de tempête.

Very High spatial Resolution (VHR) images like Pléiades imagery (50 cm panchromatic, 2m multispectral) allows a detailed description of forest structure (tree distribution and size) at stand level, by exploiting the spatial relationship between tree structure and image texture when the pixel size is smaller than tree dimensions. This information meets the expected strong need for spatial inventory of forest resources at the stand level and its changes due to forest management, land use or catastrophic events. The aim is twofold : (1) assess the VHR satellite images potential to estimate the main variables of forest structure from the image texture: crown diameter, stem diameter, height, density or tree…

Advisors/Committee Members: Boukir, Samia (thesis director).

Subjects/Keywords: Classification; Sélection de variables; Forêts aléatoires; Texture; Forêt; Pléiades; Très haute résolution spatiale; Classification; Feature selection; Random forest; Texture; Forestry; Pléiades; Very high spatial resolution

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APA (6^th Edition):

Beguet, B. (2014). Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images. (Doctoral Dissertation). Université Michel de Montaigne – Bordeaux III. Retrieved from http://www.theses.fr/2014BOR30041

Chicago Manual of Style (16^th Edition):

Beguet, Benoît. “Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images.” 2014. Doctoral Dissertation, Université Michel de Montaigne – Bordeaux III. Accessed March 02, 2021. http://www.theses.fr/2014BOR30041.

MLA Handbook (7^th Edition):

Beguet, Benoît. “Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images.” 2014. Web. 02 Mar 2021.

Vancouver:

Beguet B. Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images. [Internet] [Doctoral dissertation]. Université Michel de Montaigne – Bordeaux III; 2014. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2014BOR30041.

Council of Science Editors:

Beguet B. Caractérisation et cartographie de la structure forestière à partir d'images satellitaires à très haute résolution spatiale : Quantification and mapping of forest structure from Very High Resolution (VHR) satellite images. [Doctoral Dissertation]. Université Michel de Montaigne – Bordeaux III; 2014. Available from: http://www.theses.fr/2014BOR30041

26. Upegui Cardona, Erika. Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates.

Degree: Docteur es, Géographie et aménagement des territoires, 2012, Besançon

URL: http://www.theses.fr/2012BESA1015

►

En épidémiologie, une connaissance précise des populations à risque constitue un pré requis aucalcul d'indicateurs de l’état de santé d’une communauté (taux d'incidence). Néanmoins, les… (more)

▼

En épidémiologie, une connaissance précise des populations à risque constitue un pré requis aucalcul d'indicateurs de l’état de santé d’une communauté (taux d'incidence). Néanmoins, les effectifsde population peuvent être indisponibles, ou peu fiables, ou insuffisamment détaillés pour un usageépidémiologique.L'objectif principal de ce travail est d'obtenir des taux d'incidence en l'absence de donnéesdémographiques, à une échelle spatiale infra-communale. Les objectifs secondaires sont d'estimerles populations humaines par l'intermédiaire de données satellitaires à très haute résolution spatiale(THRS), d'évaluer l'apport de ces données THRS par rapport aux données à haute résolution spatiale(Landsat) dans un même cadre urbain (Besançon), et de mettre au point une méthodologie simple etrobuste, pour garantir son exportabilité à d'autres zones.Nous proposons une approche en trois étapes, fondée sur la corrélation existant entre la densité depopulation et la morphologie urbaine. La première étape consiste à extraire des bâtiments à partirdes données télédétection THRS. Ces bâtiments sont utilisés dans la deuxième étape pour modéliserla population. A leur tour, ces populations servent de dénominateur, lors de la dernière étape, pourcalculer des taux d’incidence (cancers). Des données de référence sont utilisées à chaque étape pourévaluer les performances de notre méthodologie.Les résultats obtenus soulignent le potentiel de la télédétection pour mesurer l'état de santé d'unecommunauté (sous la forme de taux bruts d’incidence) à une échelle géographique fine. Ces tauxd'incidence estimés peuvent alors constituer des éléments de décision pour mieux adapter l'offre desoins aux besoin de santé, même en l'absence de données démographiques

In epidemiology, a precise knowledge of populations at risk is a prerequisite for calculating state ofhealth indicators of a community (incidence rates). The population data, however, may beunavailable, unreliable, or insufficiently detailed for epidemiological use.The main objective of this research is to estimate incidence rates, in cases of absence of demographicdata, at an infra-communal scale. The secondary objectives are to estimate the human populationthrough satellite data at very high spatial resolution (VHSR), to assess the contribution of this data(VHSR) compared with high spatial resolution data (Landsat) in a same urban framework (Besançon),and to develop a simple and robust methodology to ensure its exportability to other areas.We proposed a three-step approach based on the correlation between population density and urbanmorphology. The first step is to extract buildings from VHSR imagery data. These buildings are thenused in the second step to model the population data. Finally, this population data is used as thedenominator to calculate incidence rates (cancers). Reference data are used at each step to assessthe performance of our methodology.The results obtained highlight the potential of remote sensing to measure the state of health of acommunity (in the form of crude…

Advisors/Committee Members: Viel, Jean-François (thesis director), Joly, Daniel (thesis director).

Subjects/Keywords: Télédétection; Très haute résolution spatiale; Bâtiments; Classification d’images; Distribution de population; Épidémiologie; Taux d’incidence; Interdisciplinarité; Remote sensing; Very high spatial resolution; Buildings; Imagery classification; Population allocation; Epidemiology; Incidence rates; Interdisciplinarity

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APA (6^th Edition):

Upegui Cardona, E. (2012). Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates. (Doctoral Dissertation). Besançon. Retrieved from http://www.theses.fr/2012BESA1015

Chicago Manual of Style (16^th Edition):

Upegui Cardona, Erika. “Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates.” 2012. Doctoral Dissertation, Besançon. Accessed March 02, 2021. http://www.theses.fr/2012BESA1015.

MLA Handbook (7^th Edition):

Upegui Cardona, Erika. “Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates.” 2012. Web. 02 Mar 2021.

Vancouver:

Upegui Cardona E. Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates. [Internet] [Doctoral dissertation]. Besançon; 2012. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2012BESA1015.

Council of Science Editors:

Upegui Cardona E. Télédétection et épidémiologie en zone urbaine : de l'extraction de bâtiments à partir d'images satellite à très haute résolution à l'estimation de taux d'incidence : Remote sensing and epidemiology in urban zone : from extraction of buildings from very high resolution satellite images to the estimation of incidence rates. [Doctoral Dissertation]. Besançon; 2012. Available from: http://www.theses.fr/2012BESA1015

New Jersey Institute of Technology

27. Mitrofanov, Oleg. Near-field imaging with terahertz pulses.

Degree: PhD, Federated Physics Department, 2001, New Jersey Institute of Technology

URL: https://digitalcommons.njit.edu/dissertations/478

► High spatial resolution imaging is implemented with a novel collection mode near-field terahertz (THz) probe. Exceptional sensitivity of the probe allows imaging with spatial… (more)

Subjects/Keywords: High Spatial Resolution Imaging; Near-Field Terahertz (THz) Probe; Probe Design; Other Physics

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APA (6^th Edition):

Mitrofanov, O. (2001). Near-field imaging with terahertz pulses. (Doctoral Dissertation). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/dissertations/478

Chicago Manual of Style (16^th Edition):

Mitrofanov, Oleg. “Near-field imaging with terahertz pulses.” 2001. Doctoral Dissertation, New Jersey Institute of Technology. Accessed March 02, 2021. https://digitalcommons.njit.edu/dissertations/478.

MLA Handbook (7^th Edition):

Mitrofanov, Oleg. “Near-field imaging with terahertz pulses.” 2001. Web. 02 Mar 2021.

Vancouver:

Mitrofanov O. Near-field imaging with terahertz pulses. [Internet] [Doctoral dissertation]. New Jersey Institute of Technology; 2001. [cited 2021 Mar 02]. Available from: https://digitalcommons.njit.edu/dissertations/478.

Council of Science Editors:

Mitrofanov O. Near-field imaging with terahertz pulses. [Doctoral Dissertation]. New Jersey Institute of Technology; 2001. Available from: https://digitalcommons.njit.edu/dissertations/478

28. Vitter, Maxime. Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation.

Degree: Docteur es, Geographie, 2018, Lyon

URL: http://www.theses.fr/2018LYSES011

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Depuis une quinzaine d’années, l’émergence des données de télédétection à Très Haute Résolution Spatiale (THRS) et la démocratisation des Systèmes d’Information Géographique (SIG) aident à… (more)

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Depuis une quinzaine d’années, l’émergence des données de télédétection à Très Haute Résolution Spatiale (THRS) et la démocratisation des Systèmes d’Information Géographique (SIG) aident à répondre aux nouveaux besoins croissants d’informations spatialisées. Le développement de nouvelles méthodes de cartographie offre une opportunité pour comprendre et anticiper les mutations des surfaces terrestres aux grandes échelles, jusqu’ici mal connues. En France, l’emploi de bases de données spatialisées sur l’occupation du sol à grande échelle (BD Ocsol GE) est devenu incontournable dans les opérations courantes de planification et de suivi des territoires. Pourtant, l’acquisition de ce type de bases de données spatialisées est encore un besoin difficile à satisfaire car les demandes portent sur des productions cartographiques sur-mesure, adaptées aux problématiques locales des territoires. Face à cette demande croissante, les prestataires réguliers de ce type de données cherchent à optimiser les procédés de fabrication avec des techniques récentes de traitements d’image. Cependant, la Photo-Interprétation Assistée par Ordinateur (PIAO) reste la méthode privilégiée des prestataires. En raison de sa grande souplesse, elle répond toujours au besoin de cartographie aux grandes échelles, malgré son coût important. La substitution de la PIAO par des méthodes de production entièrement automatisées est rarement envisagée. Toutefois, les développements récents en matière de segmentation d’images peuvent contribuer à l’optimisation de la pratique de la photo-interprétation. Cette thèse présente ainsi une série d’outils (ou modules) qui participent à l’élaboration d’une assistance à la digitalisation pour l’exercice de photo-interprétation d’une BD Ocsol GE. L’assistance se traduit par la réalisation d’un prédécoupage du paysage à partir d’une segmentation menée sur une image THRS. L’originalité des outils présentés est leur intégration dans un contexte de production fortement contraint. La construction des modules est conduite à travers trois prestations cartographiques à grande échelle commandités par des entités publiques. L’apport de ces outils d’automatisation est analysé à travers une analyse comparative entre deux procédures de cartographie : l’une basée sur une démarche de photo-interprétation entièrement manuelle et la seconde basée sur une photo-interprétation assistée en amont par une segmentation numérique. Les gains de productivité apportés par la segmentation sont, évalués à l’aide d’indices quantitatifs et qualitatifs, sur des configurations paysagères différentes. À des degrés divers, il apparaît que quelque soit le type de paysage cartographié, les gains liés à la cartographie assistée sont substantiels. Ces gains sont discutés, à la fois, d’un point de vue technique et d’un point de vue thématique dans une perspective commerciale.

Over the last fifteen years, the emergence of remote sensing data at Very High Spatial Resolution (VHRS) and the democratization of Geographic Information Systems (GIS) have helped to…

Advisors/Committee Members: Etlicher, Bernard (thesis director), Jacqueminet, Christine (thesis director).

Subjects/Keywords: Occupation du sol à grande échelle; Images à très haute résolution spatiale; Segmentation d'image; Cartography; Land cover mapping at large scale; Very high spatial resolution images; Photo-interpretation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vitter, M. (2018). Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2018LYSES011

Chicago Manual of Style (16^th Edition):

Vitter, Maxime. “Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation.” 2018. Doctoral Dissertation, Lyon. Accessed March 02, 2021. http://www.theses.fr/2018LYSES011.

MLA Handbook (7^th Edition):

Vitter, Maxime. “Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation.” 2018. Web. 02 Mar 2021.

Vancouver:

Vitter M. Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation. [Internet] [Doctoral dissertation]. Lyon; 2018. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2018LYSES011.

Council of Science Editors:

Vitter M. Cartographier l'occupation du sol à grande échelle : optimisation de la photo-interprétation par segmentation d'image. : Land cover mapping at large scale using photo-interpretation : Contribution of image segmentation. [Doctoral Dissertation]. Lyon; 2018. Available from: http://www.theses.fr/2018LYSES011

29. Coyac, Antoine. Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping.

Degree: Docteur es, Photonique et systèmes optoélectroniques, 2017, Toulouse, ISAE

URL: http://www.theses.fr/2017ESAE0033

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L'imagerie laser 3D est une technique performante utilisée notamment pour cartographier l'environnement dans lequel évolue un aéronef, en mesurant la distance le séparant d'un objet,… (more)

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L'imagerie laser 3D est une technique performante utilisée notamment pour cartographier l'environnement dans lequel évolue un aéronef, en mesurant la distance le séparant d'un objet, en plus des coordonnées (x,y). Le système est capable d'acquérir des mesures par tout temps (nuit, pluie, brouillard). Une nouvelle génération de capteurs, multi-pixels et ultra-sensibles, permet alors de répondre aux besoins identifiés pour cartographier avec précision une zone de grande superficie : haute résolution spatiale, longue portée avec précision centimétrique et rapidité d'acquisition. Il s'agit des plans focaux 3D Geiger. Avant leur utilisation en aéroporté, il était nécessaire de se familiariser avec leur fonctionnement, basé sur les probabilités de détection. Un simulateur reproduisant l'ensemble de la chaîne d'acquisition à été développé, puis validé sur des cas réels, au sol et en conditions statiques. Il a ensuite permis de démontrer l'intérêt des plans focaux Geiger pour la cartographie aéroportée à longue distance.

3D laser imaging is a powerful technique used to recognize the environment around an aircraft, by measuring the distance between the system and an objet, in addition to its spatial coordinates. Also, it allows data acquisition under any weather condition (night, rain, fog). A new kind of sensors, multi-pixel arrays with high sensitivity, seems in line with the needs of an accurate 3D mapping of a big area : high spatial resolution, longe range detection with centimeter accuracy and low acquisition time. There are 3D Geiger-mode focal plane arrays. Before an onboard use, it was necessary to analyze the operation of such a sensor, based on probabilities of detection. An end-to-end simulator reproducing the entire acquisition process has been implemented, then experimentally validated on ground and static cases. It finally allowed to demonstrate the potential and contribution of Geiger-mode focal plane arrays for long distance and high spatial resolution airborne 3D mapping.

Advisors/Committee Members: Briottet, Xavier (thesis director).

Subjects/Keywords: Imagerie active 3D; Lidar imageur; Plan focal; Geiger; GmAPD; Cartographie; Haute résolution spatiale; 3D laser imaging; Ladar; Focal plane array; Geiger; GmAPD; Mapping; High spatial resolution; 621

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Coyac, A. (2017). Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping. (Doctoral Dissertation). Toulouse, ISAE. Retrieved from http://www.theses.fr/2017ESAE0033

Chicago Manual of Style (16^th Edition):

Coyac, Antoine. “Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping.” 2017. Doctoral Dissertation, Toulouse, ISAE. Accessed March 02, 2021. http://www.theses.fr/2017ESAE0033.

MLA Handbook (7^th Edition):

Coyac, Antoine. “Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping.” 2017. Web. 02 Mar 2021.

Vancouver:

Coyac A. Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping. [Internet] [Doctoral dissertation]. Toulouse, ISAE; 2017. [cited 2021 Mar 02]. Available from: http://www.theses.fr/2017ESAE0033.

Council of Science Editors:

Coyac A. Apport de l’imagerie active 3D à plan focal, embarquable sur drone, pour l’amélioration de la cartographie haute résolution de terrain : Contribution of 3D active imaging with focal plane array, embeddable on drone, for the improvement of high resolution terrain mapping. [Doctoral Dissertation]. Toulouse, ISAE; 2017. Available from: http://www.theses.fr/2017ESAE0033

Universitat de Valencia

30. Hojas Gascón, Lorena. Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania .

Degree: 2017, Universitat de Valencia

URL: http://hdl.handle.net/10550/61323

► El principal objetivo de este doctorado es apoyar el desarrollo de un sistema nacional de monitoreo forestal en Tanzania para informar sobre las emisiones actuales… (more)

▼ El principal objetivo de este doctorado es apoyar el desarrollo de un sistema nacional de monitoreo forestal en Tanzania para informar sobre las emisiones actuales e históricas derivadas de la deforestación y la degradación forestal. El marco de la tesis se centra específicamente en el emergente contexto internacional de la iniciativa REDD + (Reducción de Emisiones por Deforestación y Degradación) de las Naciones Unidas, bajo la cual los países pueden obtener subsidios financieros para demostrar que están reduciendo sus emisiones de carbono de tierras forestales con respecto a su práctica histórica reciente. La investigación se centró en cinco áreas de investigación: La parte (1) revisa los antecedentes políticos de REDD +. En él se describen las normas y las opciones a ser abordadas por los países participantes y se demuestran algunos de los problemas técnicos y las opciones que pueden enfrentar y adoptar en la tecnología de teledetección. La parte (2) presenta los resultados del trabajo de campo en Tanzania. Esto incluye la creación de una recopilación rápida de datos sobre el terreno y directrices sobre protocolos para vincular los datos de campo con los datos de teledetección, con el fin de producir mapas de cobertura vegetal y biomasa aérea utilizando imágenes de muy alta resolución. La parte (3) demuestra la mejora en el mapeo de los bosques con una fina resolución espacial y alta frecuencia de adquisiciones con la llegada de los nuevos satélites Sentinel-2. Este potencial se ha probado en un área de bosque seco en el centro de Tanzania. En la parte (4) se evalúa una estimación a gran escala de la biomasa terrestre para toda Tanzania, utilizando una combinación de datos de teledetección y de campo. La capacidad predictiva se investigó comparando los resultados con las mediciones en tierra realizadas por el inventario nacional. La parte (5) investiga la dinámica de la deforestación alrededor de Dar es Salaam, junto con un modelo para inferir la probabilidad futura de deforestación a nivel nacional. La capacidad del modelo de replicar los patrones espaciales de deforestación se evaluó a través de datos del terreno. Entre los principales resultados de este doctorado están que las estimaciones de cambios de cobertura forestal de diferentes fuentes tienen una amplia varianza a nivel nacional y que las estimaciones de emisiones para el proceso REDD + siguen siendo poco fiables. Hay un gran número de opciones a las que se enfrenta un sistema de monitoreo forestal, en términos de definiciones y métodos, que tienen un impacto en la factibilidad de implementación y en los resultados. Se ha demostrado la dificultad de vincular los datos de teledetección con los parámetros forestales de los estudios nacionales, con recomendaciones para mejorar la futura recopilación de datos sobre el terreno. Sin embargo, el uso sinérgico de la teledetección y los datos del estudio sobre el terreno pueden reducir efectivamente los costes de cartografía y monitoreo de los cambios y la degradación de los bosques. Para ello, se… Advisors/Committee Members: García Haro, Francisco Javier (advisor).

Subjects/Keywords: forest; deforestation; forest degradation; remote sensing; satellite data; satellite image; forest biomass; field data; Tanzania; REDD+; high spatial resolution; national monitoring; carbon emissions; tree cover; vegetation classification

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hojas Gascón, L. (2017). Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania . (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/61323

Chicago Manual of Style (16^th Edition):

Hojas Gascón, Lorena. “Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania .” 2017. Doctoral Dissertation, Universitat de Valencia. Accessed March 02, 2021. http://hdl.handle.net/10550/61323.

MLA Handbook (7^th Edition):

Hojas Gascón, Lorena. “Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania .” 2017. Web. 02 Mar 2021.

Vancouver:

Hojas Gascón L. Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania . [Internet] [Doctoral dissertation]. Universitat de Valencia; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10550/61323.

Council of Science Editors:

Hojas Gascón L. Monitoring deforestation and forest degradation linking high-resolution satellite data and field data in the context of REDD+. A case of Tanzania . [Doctoral Dissertation]. Universitat de Valencia; 2017. Available from: http://hdl.handle.net/10550/61323

Open Access Theses and Dissertations