subject:(3D Reconstruction)

Rochester Institute of Technology

1. Pieszala, James. 3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions.

Degree: MS, Computer Science (GCCIS), 2015, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/8936

► We present a novel pipeline for localizing a free roaming eye tracker within a LiDAR-based 3D reconstructed scene with high levels of accuracy. By… (more)

Subjects/Keywords: 3D computer vision; 3D gaze; 3D reconstruction

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

APA (6^th Edition):

Pieszala, J. (2015). 3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/8936

Chicago Manual of Style (16^th Edition):

Pieszala, James. “3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions.” 2015. Masters Thesis, Rochester Institute of Technology. Accessed January 23, 2020. https://scholarworks.rit.edu/theses/8936.

MLA Handbook (7^th Edition):

Pieszala, James. “3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions.” 2015. Web. 23 Jan 2020.

Vancouver:

Pieszala J. 3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions. [Internet] [Masters thesis]. Rochester Institute of Technology; 2015. [cited 2020 Jan 23]. Available from: https://scholarworks.rit.edu/theses/8936.

Council of Science Editors:

Pieszala J. 3D Gaze Point Localization and Visualization Using LiDAR-based 3D Reconstructions. [Masters Thesis]. Rochester Institute of Technology; 2015. Available from: https://scholarworks.rit.edu/theses/8936

University of Southern California

2. Kang, Zhuoliang. Accurate 3D model acquisition from imagery data.

Degree: PhD, Computer Science, 2015, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/572252/rec/481

► Acquisition of geometric 3D models from 2D imagery has been essential for various applications. In particular, this dissertation investigates two important application scenarios: city‐scale 3D… (more)

▼ Acquisition of geometric 3D models from 2D imagery has been essential for various applications. In particular, this dissertation investigates two important application scenarios: city‐scale 3D reconstruction from aerial imagery and general 3D model acquisition with a commodity camera. ❧ The first part of this dissertation explores an online solution to the problem. We propose an approach to solve camera pose estimation and dense reconstruction from Wide Area Aerial Surveillance (WAAS) videos captured by an airborne platform. Our approach solves them in an online fashion: it incrementally updates a sparse 3D map and estimates the camera pose as each new frame arrives; depth maps of selected key frames are computed using a variational method and integrated to produce a full 3D model via volumetric reconstruction. In practice, aerial imagery is usually captured using a multi‐camera system. We propose an approach for camera pose estimation of multi‐camera aerial imagery which is parallelized on multiple GPUs for efficiency. The approach is also extended for progressive 3D model acquisition with a hand‐held camera. ❧ In many scenarios, online approach is not a necessity and accuracy has higher priority over efficiency. In the second part, we present MeshRecon, a mesh‐based offline system composed of three modules: a dense point cloud is generated using multi‐resolution plane sweep method; an initial mesh model is extracted from the point cloud via global optimization considering visibility information of all images; the mesh model is then iteratively refined to capture structural details by optimizing the photometric consistency and spatial regularization. The major processes are parallelized on GPU for efficiency. For the aerial imagery case, we evaluate our system on several real-world multi‐camera aerial imagery datasets, each covering an urban scenario of several square kilometers. Quantitative result shows that the reconstructed geometric 3D model is highly accurate with error smaller than 1 meter over the entire city. Besides aerial imagery, we also evaluate its performance on general geometric 3D model acquisition of real‐world objects. Result shows that the system is robust and flexible for various types of objects at different scales in both indoor and outdoor environments. Based on city 3D models reconstructed at different times, we present a system for city‐scale geometry change detection by performing comparisons at the 3D geometry level. Our system is able to detect geometry changes at different scales, ranging from a building cluster to small‐scale vegetation changes, with high accuracy. In the end, we conclude the dissertation with contributions and future work. Advisors/Committee Members: Medioni, Gerard G.Medioni, Gérard G. (Committee Chair), Li, Hao (Committee Member), Sawchuk, Alexander A. (Sandy) (Committee Member).

Subjects/Keywords: computer vision; 3D reconstruction; urban reconstruction

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APA (6^th Edition):

Kang, Z. (2015). Accurate 3D model acquisition from imagery data. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/572252/rec/481

Chicago Manual of Style (16^th Edition):

Kang, Zhuoliang. “Accurate 3D model acquisition from imagery data.” 2015. Doctoral Dissertation, University of Southern California. Accessed January 23, 2020. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/572252/rec/481.

MLA Handbook (7^th Edition):

Kang, Zhuoliang. “Accurate 3D model acquisition from imagery data.” 2015. Web. 23 Jan 2020.

Vancouver:

Kang Z. Accurate 3D model acquisition from imagery data. [Internet] [Doctoral dissertation]. University of Southern California; 2015. [cited 2020 Jan 23]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/572252/rec/481.

Council of Science Editors:

Kang Z. Accurate 3D model acquisition from imagery data. [Doctoral Dissertation]. University of Southern California; 2015. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/572252/rec/481

3. Chhatkuli, Ajad. Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables.

Degree: Docteur es, Sciences pour l'ingenieur, 2016, Clermont-Ferrand 1

URL: http://www.theses.fr/2016CLF1MM27

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Cette thèse contribue au problème de la reconstruction 3D pour les surfaces déformables avec une seule caméra. Afin de modéliser la déformation de la surface,… (more)

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Cette thèse contribue au problème de la reconstruction 3D pour les surfaces déformables avec une seule caméra. Afin de modéliser la déformation de la surface, nous considérons l’isométrie puisque de nombreuses déformations d’objets réels sont quasi-isométriques. L’isométrie implique que, lors de sa déformation, la surface ne peut pas être étirée ou compressée. Nous étudions deux problèmes. Le premier est le problème basé sur une modèle 3D de référence et une seule image. L’état de l’art propose une méthode locale et analytique de calcul direct de profondeur sous l’hypothèse d’isométrie. Dans cette méthode, la solution pour le gradient de la profondeur n’est pas utilisée. Nous prouvons que cette méthode s’avère instable lorsque la géométrie de la caméra tend à être affine. Nous fournissons des méthodes alternatives basées sur les solutions analytiques locales des quantités de premier ordre, telles que les gradients de profondeur ou les normales de la surface. Nos méthodes sont stables dans toutes les géométries de projection. Dans le deuxième type de problème de reconstruction sans modèle 3D de référence, on obtient les formes de l’objet à partir d’un ensemble d’images où il apparaît déformé. Nous fournissons des solutions locales et globales basées sur le modéle de la caméra perspective. Dans la méthode locale ou par point, nous résolvons pour la normale de la surface en chaque point en supposant que la surface est infinitésimalement plane. Nous calculons ensuite la surface par intégration. Dans la méthode globale, nous trouvons une relaxation convexe du problème. Celle-ci est basée sur la relaxation de l’isométrie en contrainte d’inextensibilité et sur la maximisation de la profondeur en chaque point de la surface. Cette solution combine toutes les contraintes en un seul programme d’optimisation convexe qui calcule la profondeur et utilise une représentation éparse de la surface. Nous détaillons les expériences approfondies qui ont été réalisées pour démontrer l’efficacité de chacune des méthodes. Les expériences montrent que notre solution libre de modèle de référence local fonctionne mieux que la plupart des méthodes précédentes. Notre méthode local avec un modèle 3D de référence et notre méthode globale sans modèle 3D apportent de meilleurs résultats que les méthodes de l’état de l’art en étant robuste au bruit de la correspondance. En particulier, nous sommes en mesure de reconstruire des déformations complexes, non-lisses et d’articulations avec la seconde méthode; alors qu’avec la première, nous pouvons reconstruire avec précision de déformations larges à partir d’images prises avec des très longues focales.

This thesis contributes to the problem of 3D reconstruction for deformable surfaces using a single camera. In order to model surface deformation, we use the isometric prior because many real object deformations are near-isometric. Isometry implies that the surface cannot stretch or compress. We tackle two different problems. The first is called Shape-from-Template where the object’s deformed shape is…

Advisors/Committee Members: Bartoli, Adrien (thesis director), Pizarro, Daniel (thesis director).

Subjects/Keywords: Reconstruction non-rigide.; Reconstruction 3D; Surface isométric; Non-rigid Reconstruction.; Isométric surfaces,; 3D Reconstruction,; 616

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

APA (6^th Edition):

Chhatkuli, A. (2016). Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables. (Doctoral Dissertation). Clermont-Ferrand 1. Retrieved from http://www.theses.fr/2016CLF1MM27

Chicago Manual of Style (16^th Edition):

Chhatkuli, Ajad. “Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables.” 2016. Doctoral Dissertation, Clermont-Ferrand 1. Accessed January 23, 2020. http://www.theses.fr/2016CLF1MM27.

MLA Handbook (7^th Edition):

Chhatkuli, Ajad. “Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables.” 2016. Web. 23 Jan 2020.

Vancouver:

Chhatkuli A. Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables. [Internet] [Doctoral dissertation]. Clermont-Ferrand 1; 2016. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2016CLF1MM27.

Council of Science Editors:

Chhatkuli A. Local analytic and global convex methods for the 3D reconstruction of isometric deformable surfaces. : Méthodes Analytiques Locales et Méthodes Globales Convexes pour la Reconstruction 3D de Surfaces Isométriquement Déformables. [Doctoral Dissertation]. Clermont-Ferrand 1; 2016. Available from: http://www.theses.fr/2016CLF1MM27

Penn State University

4. Breslav, Mikhail. 3D Reconstruction of 2D Endobronchial Ultrasound.

Degree: MS, Electrical Engineering, 2010, Penn State University

URL: https://etda.libraries.psu.edu/catalog/10736

► The Multidimensional Image Processing Lab (MIPL) at The Pennsylvania State University has been developing methods to help stage and diagnose lung cancer for over 15… (more)

Subjects/Keywords: 3D reconstruction; ultrasound; EBUS

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APA (6^th Edition):

Breslav, M. (2010). 3D Reconstruction of 2D Endobronchial Ultrasound. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/10736

Chicago Manual of Style (16^th Edition):

Breslav, Mikhail. “3D Reconstruction of 2D Endobronchial Ultrasound.” 2010. Masters Thesis, Penn State University. Accessed January 23, 2020. https://etda.libraries.psu.edu/catalog/10736.

MLA Handbook (7^th Edition):

Breslav, Mikhail. “3D Reconstruction of 2D Endobronchial Ultrasound.” 2010. Web. 23 Jan 2020.

Vancouver:

Breslav M. 3D Reconstruction of 2D Endobronchial Ultrasound. [Internet] [Masters thesis]. Penn State University; 2010. [cited 2020 Jan 23]. Available from: https://etda.libraries.psu.edu/catalog/10736.

Council of Science Editors:

Breslav M. 3D Reconstruction of 2D Endobronchial Ultrasound. [Masters Thesis]. Penn State University; 2010. Available from: https://etda.libraries.psu.edu/catalog/10736

Louisiana State University

5. Ravi, Padmapriya. Efficient Dense 3D Reconstruction Using Image Pairs.

Degree: MSEE, Electrical and Computer Engineering, 2014, Louisiana State University

URL: etd-01122015-013948 ; https://digitalcommons.lsu.edu/gradschool_theses/3277

► The 3D reconstruction of a scene from 2D images is an important topic in the _x000C_eld of Computer Vision due to the high demand… (more)

▼ The 3D reconstruction of a scene from 2D images is an important topic in the _x000C_eld of Computer Vision due to the high demand in various applications such as gaming, animations, face recognition, parts inspections, etc. The accuracy of a 3D reconstruction is highly dependent on the accuracy of the correspondence matching between the images. For the purpose of high accuracy of 3D reconstruction system using just two images of the scene, it is important to _x000C_nd accurate correspondence between the image pairs. In this thesis, we implement an accurate 3D reconstruction system from two images of the scene at di_x000B_erent orientation using a normal digital camera. We use epipolar geometry to improvise the performance of the initial coarse correspondence matches between the images. Finally we calculate the reprojection error of the 3D reconstruction system before and after re_x000C_ning the correspondence matches using the epipolar geometry and compare the performance between them. Even though many feature-based correspondence matching techniques provide robust matching required for 3D reconstruction, it gives only coarse correspondence matching between the images. This is not su_x000E_cient to reconstruct the detailed 3D structure of the objects. Therefore we use our improvised image matching to calculate the camera parameters and implement dense image matching using thin-plate spline interpolation, which interpolates the surface based on the initial control points obtained from coarse correspondence matches. Since the thin-plate spline interpolates highly dense points from a very few control points, the correspondence mapping between the images are not accurate. We propose a new method to improve the performance of the dense image matching using epipolar geometry and intensity based thin-plate spline interpolation. We apply the proposed method for 3D reconstruction using two images. Finally, we develop systematic evaluation for our dense 3D reconstruction system and discuss the results.

Subjects/Keywords: 3D reconstruction; multiple view geometry

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

APA (6^th Edition):

Ravi, P. (2014). Efficient Dense 3D Reconstruction Using Image Pairs. (Masters Thesis). Louisiana State University. Retrieved from etd-01122015-013948 ; https://digitalcommons.lsu.edu/gradschool_theses/3277

Chicago Manual of Style (16^th Edition):

Ravi, Padmapriya. “Efficient Dense 3D Reconstruction Using Image Pairs.” 2014. Masters Thesis, Louisiana State University. Accessed January 23, 2020. etd-01122015-013948 ; https://digitalcommons.lsu.edu/gradschool_theses/3277.

MLA Handbook (7^th Edition):

Ravi, Padmapriya. “Efficient Dense 3D Reconstruction Using Image Pairs.” 2014. Web. 23 Jan 2020.

Vancouver:

Ravi P. Efficient Dense 3D Reconstruction Using Image Pairs. [Internet] [Masters thesis]. Louisiana State University; 2014. [cited 2020 Jan 23]. Available from: etd-01122015-013948 ; https://digitalcommons.lsu.edu/gradschool_theses/3277.

Council of Science Editors:

Ravi P. Efficient Dense 3D Reconstruction Using Image Pairs. [Masters Thesis]. Louisiana State University; 2014. Available from: etd-01122015-013948 ; https://digitalcommons.lsu.edu/gradschool_theses/3277

University of Southern California

6. Lin, Yuping. Accurate image registration through 3D reconstruction.

Degree: PhD, Computer Science, 2010, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/364479/rec/484

► Image registration is a fundamental problem in image analysis, and is used in a variety of applications such as tracking, moving object detection, remote sensing,… (more)

▼ Image registration is a fundamental problem in image analysis, and is used in a variety of applications such as tracking, moving object detection, remote sensing, etc. In this thesis, we study image registration problems where the images are taken at different times, from different sensors, and from different viewpoints. Moreover, the scene may contain arbitrary 3D structure. With all these variations, image registration become a challenging task, where standard techniques may fail to produce accurate results.; According to the geometry in the image, we categorize image registration problems into 2D registration and 3D registration. In 2D registration, image features are extracted and matched to establish correspondences, from which the epipolar geometry can be estimated. Images are then registered using a derived 2D model. In 3D registration, on top of epipolar geometry estimation, a sparse reconstruction step is required which recovers camera parameters and the sparse structure. A dense reconstruction step follows, which recovers structure in the entire scene, images are then registered through 3D inference. The main contribution in this thesis is the in depth study of a number of issues in image registration applications which a general framework does not address, particularly in the 3D reconstruction pipeline.; We start from 2D image registration, and look at two applications, UAV image registration and retinal image registration. In UAV image registration, we are given a UAV image sequence, and the goal is to produce a mosaic in a progressive manner. As inter-frame registration error accumulates along the process, and results in deviation, we introduce an additional map as a global reference, and perform UAV to map registration to compensate for the error. In retinal image registration, the input is a set of retinal images in multiple modalities. We propose an iterative nearest neighbor matching method to account for issues raised in multi-modal imagery, and achieve both high registration rate and high efficiency.; We then extend our study in both imageries to 3D, to account for the underlying 3D geometry. In addition, we research some other 3D reconstruction problems using human facial images. In 3D retinal image registration, we address the issues which arise from the near planar property of a retinal surface, and propose a 4-pass bundle adjustment method to account for it. Our approach is shown to be very robust and efficient, and is state-of-the-art in 3D retinal image registration. For UAV image registration, we focus on the dense 3D reconstruction of urban environments. Images of urban environments are characterized by significant occlusions, sharp edges, and textureless regions, leading to poor 3D reconstruction using standard multi-view stereo algorithms. Our approach makes a general assumption that urban scenes consist of planar facets that are either horizontal or vertical. These two assumptions provide very strong constraints for the underlying geometry. The contribution of this work is the way we… Advisors/Committee Members: Medioni, Gérard (Committee Chair), Itti, Laurent (Committee Member), Kuo, C.-C. Jay (Committee Member).

Subjects/Keywords: image registration; 3D reconstruction

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

APA (6^th Edition):

Lin, Y. (2010). Accurate image registration through 3D reconstruction. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/364479/rec/484

Chicago Manual of Style (16^th Edition):

Lin, Yuping. “Accurate image registration through 3D reconstruction.” 2010. Doctoral Dissertation, University of Southern California. Accessed January 23, 2020. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/364479/rec/484.

MLA Handbook (7^th Edition):

Lin, Yuping. “Accurate image registration through 3D reconstruction.” 2010. Web. 23 Jan 2020.

Vancouver:

Lin Y. Accurate image registration through 3D reconstruction. [Internet] [Doctoral dissertation]. University of Southern California; 2010. [cited 2020 Jan 23]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/364479/rec/484.

Council of Science Editors:

Lin Y. Accurate image registration through 3D reconstruction. [Doctoral Dissertation]. University of Southern California; 2010. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/364479/rec/484

7. Haouchine, Nazim. Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique.

Degree: Docteur es, Informatique, 2015, Université Lille I – Sciences et Technologies

URL: http://www.theses.fr/2015LIL10009

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L’objectif principal de cette thèse est de fournir aux chirurgiens des outils d’aide à la décision pré et per-opératoire lors d’interventions minimalement invasives en chirurgie… (more)

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L’objectif principal de cette thèse est de fournir aux chirurgiens des outils d’aide à la décision pré et per-opératoire lors d’interventions minimalement invasives en chirurgie hépatique. Ces interventions reposent en général sur des techniques de laparoscopie ou plus récemment d’endoscopie flexible. Lors de telles interventions, le chirurgien cherche à retirer un nombre souvent important de tumeurs hépatiques, tout en préservant le rôle fonctionnel du foie. Cela implique de définir une hépatectomie optimale, c’est à dire garantissant un volume du foie post-opératoire d’au moins 55% du foie initial et préservant au mieux la vascularisation hépatique. Bien qu’une planification de l’intervention puisse actuellement s’envisager sur la base de données pré-opératoire spécifiques au patient, les mouvements importants du foie et ses déformations lors de l’intervention rendent cette planification très difficile à exploiter en pratique. Les travaux proposés dans cette thèse visent à fournir des outils de réalité augmentée utilisables en conditions per-opératoires et permettant de visualiser à chaque instant la position des tumeurs et réseaux vasculaires hépatiques.

The main objective of this thesis is to provide surgeons with tools for pre and intra-operative decision support during minimally invasive hepatic surgery. These interventions are usually based on laparoscopic techniques or, more recently, flexible endoscopy. During such operations, the surgeon tries to remove a significant number of liver tumors while preserving the functional role of the liver. This involves defining an optimal hepatectomy, i.e. ensuring that the volume of post-operative liver is at least at 55% of the original liver and the preserving at hepatic vasculature. Although intervention planning can now be considered on the basis of preoperative patient-specific, significant movements of the liver and its deformations during surgery data make this very difficult to use planning in practice. The work proposed in this thesis aims to provide augmented reality tools to be used in intra-operative conditions in order to visualize the position of tumors and hepatic vascular networks at any time.

Advisors/Committee Members: Cotin, Stéphane (thesis director), Berger, Marie-Odile (thesis director), Dequidt, Jérémie (thesis director).

Subjects/Keywords: Reconstruction 3D; Suivi visuel; 003.3

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

APA (6^th Edition):

Haouchine, N. (2015). Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique. (Doctoral Dissertation). Université Lille I – Sciences et Technologies. Retrieved from http://www.theses.fr/2015LIL10009

Chicago Manual of Style (16^th Edition):

Haouchine, Nazim. “Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique.” 2015. Doctoral Dissertation, Université Lille I – Sciences et Technologies. Accessed January 23, 2020. http://www.theses.fr/2015LIL10009.

MLA Handbook (7^th Edition):

Haouchine, Nazim. “Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique.” 2015. Web. 23 Jan 2020.

Vancouver:

Haouchine N. Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique. [Internet] [Doctoral dissertation]. Université Lille I – Sciences et Technologies; 2015. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2015LIL10009.

Council of Science Editors:

Haouchine N. Image-guided simulation for augmented reality during hepatic surgery : Simulation guidée par l’image pour la réalité augmentée durant la chirurgie hépatique. [Doctoral Dissertation]. Université Lille I – Sciences et Technologies; 2015. Available from: http://www.theses.fr/2015LIL10009

8. KOZLOV, IGOR V. ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION.

Degree: MS, 2018, University of New Hampshire

URL: https://scholars.unh.edu/thesis/1246

► Multiview reconstruction, a method for creating 3D models from multiple images from different views, has been a popular topic of research in the eld of… (more)

Subjects/Keywords: 3D reconstruction; Image Processing

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

APA (6^th Edition):

KOZLOV, I. V. (2018). ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1246

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):

KOZLOV, IGOR V. “ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION.” 2018. Thesis, University of New Hampshire. Accessed January 23, 2020. https://scholars.unh.edu/thesis/1246.

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

MLA Handbook (7^th Edition):

KOZLOV, IGOR V. “ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION.” 2018. Web. 23 Jan 2020.

Vancouver:

KOZLOV IV. ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION. [Internet] [Thesis]. University of New Hampshire; 2018. [cited 2020 Jan 23]. Available from: https://scholars.unh.edu/thesis/1246.

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

Council of Science Editors:

KOZLOV IV. ANALYSIS OF UNCERTAINTY IN UNDERWATER MULTIVIEW RECONSTRUCTION. [Thesis]. University of New Hampshire; 2018. Available from: https://scholars.unh.edu/thesis/1246

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

Delft University of Technology

9. Wu, H. Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:26a4c6b8-8ea0-4246-b30e-5c83a28cccb4

► All existing data sources used to reconstruct 3D building models have certain restrictions. An eye-catching alternative is IndoorOSM, one of the most popular examples of… (more)

▼ All existing data sources used to reconstruct 3D building models have certain restrictions. An eye-catching alternative is IndoorOSM, one of the most popular examples of the newly evolved crowdsourced geodata. The potential power of this rich and simple-formatted data source has been proven by many researches. However, a fatal flaw of IndoorOSM is also pointed out, which is its accuracy. Another promising data source that has been looked into is 2D architectural floor plans. They are also commonly available and full of detailed indoor information. Due to the inconsistencies and ambiguities existing among real-life floor plans, previous researches all are established on different user cases. Althogh sharing a common pipeline, they differ from each other in every step, from the data structure, processing procedure to the 3D reconstruction method. The combination of these two data sources can be beneficial, because architectural floor plans can offer IndoorOSM better accuracy and extensive indoor information while IndoorOSM can provide a unified data structure and 3D reconstruction workflow for information extracted from floor plans. Based on a throughout review of the characters of real-life floor plans, a set of rules are proposed to redraw architectural floor plans from real life. These rules mainly focus on reorganizing information contained in floor plans, taking advantages of the layering and blocking functions supported by CAD application. The original geometry and graphical representation in the raw floor plans is reserved as much as possible. Redrawing is only required when unstandardized representation is encountered. Then, an automatic process is accordingly presented to extract desired information from the redrawn floor plans into an IndoorOSM database. Finally, highly detailed CityGML LoD4 models with interior structures can be generated using a method proposed by Dr. Marcus Goetz. The pipeline is tested with several floor plans from real life for 3D reconstruction. User feedback validated the feasibility and efficiency of the redrawing rules. Advisors/Committee Members: Zlatanova, S., Liu, L..

Subjects/Keywords: 3D reconstruction; IndoorOSM; floor plans

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

APA (6^th Edition):

Wu, H. (2015). Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:26a4c6b8-8ea0-4246-b30e-5c83a28cccb4

Chicago Manual of Style (16^th Edition):

Wu, H. “Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:.” 2015. Masters Thesis, Delft University of Technology. Accessed January 23, 2020. http://resolver.tudelft.nl/uuid:26a4c6b8-8ea0-4246-b30e-5c83a28cccb4.

MLA Handbook (7^th Edition):

Wu, H. “Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:.” 2015. Web. 23 Jan 2020.

Vancouver:

Wu H. Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2020 Jan 23]. Available from: http://resolver.tudelft.nl/uuid:26a4c6b8-8ea0-4246-b30e-5c83a28cccb4.

Council of Science Editors:

Wu H. Integration of 2D architectural floor plans into Indoor OpenStreetMap for reconstructing 3D building models:. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:26a4c6b8-8ea0-4246-b30e-5c83a28cccb4

University of Waterloo

10. Cavan, Neil. Reconstruction of 3D Points From Uncalibrated Underwater Video.

Degree: 2011, University of Waterloo

URL: http://hdl.handle.net/10012/6242

► This thesis presents a 3D reconstruction software pipeline that is capable of generating point cloud data from uncalibrated underwater video. This research project was undertaken… (more)

▼ This thesis presents a 3D reconstruction software pipeline that is capable of generating point cloud data from uncalibrated underwater video. This research project was undertaken as a partnership with 2G Robotics, and the pipeline described in this thesis will become the 3D reconstruction engine for a software product that can generate photo-realistic 3D models from underwater video. The pipeline proceeds in three stages: video tracking, projective reconstruction, and autocalibration. Video tracking serves two functions: tracking recognizable feature points, as well as selecting well-spaced keyframes with a wide enough baseline to be used in the reconstruction. Video tracking is accomplished using Lucas-Kanade optical flow as implemented in the OpenCV toolkit. This simple and widely used method is well-suited to underwater video, which is taken by carefully piloted and slow-moving underwater vehicles. Projective reconstruction is the process of simultaneously calculating the motion of the cameras and the 3D location of observed points in the scene. This is accomplished using a geometric three-view technique. Results are presented showing that the projective reconstruction algorithm detailed here compares favourably to state-of-the-art methods. Autocalibration is the process of transforming a projective reconstruction, which is not suitable for visualization or measurement, into a metric space where it can be used. This is the most challenging part of the 3D reconstruction pipeline, and this thesis presents a novel autocalibration algorithm. Results are shown for two existing cost function-based methods in the literature which failed when applied to underwater video, as well as the proposed hybrid method. The hybrid method combines the best parts of its two parent methods, and produces good results on underwater video. Final results are shown for the 3D reconstruction pipeline operating on short under- water video sequences to produce visually accurate 3D point clouds of the scene, suitable for photorealistic rendering. Although further work remains to extend and improve the pipeline for operation on longer sequences, this thesis presents a proof-of-concept method for 3D reconstruction from uncalibrated underwater video.

Subjects/Keywords: 3D Reconstruction; Computer Vision; Autocalibration

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

APA (6^th Edition):

Cavan, N. (2011). Reconstruction of 3D Points From Uncalibrated Underwater Video. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6242

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):

Cavan, Neil. “Reconstruction of 3D Points From Uncalibrated Underwater Video.” 2011. Thesis, University of Waterloo. Accessed January 23, 2020. http://hdl.handle.net/10012/6242.

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

MLA Handbook (7^th Edition):

Cavan, Neil. “Reconstruction of 3D Points From Uncalibrated Underwater Video.” 2011. Web. 23 Jan 2020.

Vancouver:

Cavan N. Reconstruction of 3D Points From Uncalibrated Underwater Video. [Internet] [Thesis]. University of Waterloo; 2011. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/10012/6242.

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

Council of Science Editors:

Cavan N. Reconstruction of 3D Points From Uncalibrated Underwater Video. [Thesis]. University of Waterloo; 2011. Available from: http://hdl.handle.net/10012/6242

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

University of Sydney

11. Zhang, Donghao. Automatic Neuron Reconstruction Based on 3D Microscopic Images .

Degree: 2016, University of Sydney

URL: http://hdl.handle.net/2123/15390

► The digital reconstruction of single neurons from 3D microscopic images plays an important role for understanding the neuron morphology and function. However the accurate automatic… (more)

Subjects/Keywords: 3D Neuron Reconstruction; Neuron Morphology

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

APA (6^th Edition):

Zhang, D. (2016). Automatic Neuron Reconstruction Based on 3D Microscopic Images . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/15390

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):

Zhang, Donghao. “Automatic Neuron Reconstruction Based on 3D Microscopic Images .” 2016. Thesis, University of Sydney. Accessed January 23, 2020. http://hdl.handle.net/2123/15390.

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

MLA Handbook (7^th Edition):

Zhang, Donghao. “Automatic Neuron Reconstruction Based on 3D Microscopic Images .” 2016. Web. 23 Jan 2020.

Vancouver:

Zhang D. Automatic Neuron Reconstruction Based on 3D Microscopic Images . [Internet] [Thesis]. University of Sydney; 2016. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/2123/15390.

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

Council of Science Editors:

Zhang D. Automatic Neuron Reconstruction Based on 3D Microscopic Images . [Thesis]. University of Sydney; 2016. Available from: http://hdl.handle.net/2123/15390

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

12. Arnaud, Adrien. Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings.

Degree: Docteur es, Informatique, 2018, Paris Saclay

URL: http://www.theses.fr/2018SACLS512

►

L'objectif de ces travaux de thèse consiste à mettre en place des solutions algorithmiques permettant de reconstruire un modèle 3D éditable d'un environnement intérieur à… (more)

▼

L'objectif de ces travaux de thèse consiste à mettre en place des solutions algorithmiques permettant de reconstruire un modèle 3D éditable d'un environnement intérieur à l'aide d'une tablette équipée d'un capteur de profondeur.Ces travaux s'inscrivent dans le contexte de la rénovation d'intérieur. Les normes Européennes poussent à la rénovation énergétique et à la modélisation 3D des bâtiments existants. Des outils professionnels utilisant des capteurs de type LIDAR permettent de reconstruire des nuages de points de très grande qualité, mais sont coûteux et longs à mettre en œuvre. De plus, il est très difficile d'identifier automatiquement les constituants d'un bâtiment pour en exporter un modèle 3D éditable complet.Dans le cadre de la rénovation d’intérieur, il n'est pas nécessaire de disposer des informations sur l'ensemble du bâtiment, seules les principales dimensions et surfaces sont nécessaires. Nous pouvons alors envisager d'automatiser complètement le processus de modélisation 3D.La mise sur le marché de capteurs de profondeur intégrables sur tablettes, et l'augmentation des capacités de calcul de ces dernières nous permet d'envisager l'adaptation d'algorithmes de reconstruction 3D classiques à ces supports.Au cours de ces travaux, nous avons envisagé deux approches de reconstruction 3D différentes. La première approche s'appuie sur des méthodes de l'état de l'art. Elle consiste à générer un maillage 3D d'un environnement intérieur en temps réel sur tablette, puis d'utiliser ce maillage 3D pour identifier la structure globale du bâtiment (murs, portes et fenêtres). La deuxième approche envisagée consiste à générer un modèle 3D éditable en temps réel, sans passer par un maillage intermédiaire. De cette manière beaucoup plus d'informations sont disponibles pour pouvoir détecter les éléments structuraux. Nous avons en effet à chaque instant donné un nuage de points complet ainsi que l'image couleur correspondante. Nous avons dans un premier temps mis en place deux algorithmes de segmentation planaire en temps réel. Puis, nous avons mis en place un algorithme d'analyse de ces plans permettant d'identifier deux plans identiques sur plusieurs prises de vue différentes. Nous sommes alors capables d'identifier les différents murs contenus dans l'environnement capturé, et nous pouvons mettre à jour leurs informations géométriques en temps réel.

This thesis works consisted to implement algorithmic solutions to reconstruct an editable 3D model of an indoor environment using a tablet equipped with a depth sensor.These works are part of the context of interior renovation. European standards push for energy renovation and 3D modeling of existing buildings. Professional tools using LIDAR-type sensors make it possible to reconstruct high-quality point clouds, but are costly and time-consuming to implement. In addition, it is very difficult to automatically identify the constituents of a building to export a complete editable 3D model.As part of the interior renovation, it is not necessary to have information on the…

Advisors/Committee Members: Ammi, Mehdi (thesis director).

Subjects/Keywords: Reconstruction 3D; Systèmes mobiles; Segmentation 3D; 3D reconstruction; Mobile devices; 3D segmentation

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

APA (6^th Edition):

Arnaud, A. (2018). Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2018SACLS512

Chicago Manual of Style (16^th Edition):

Arnaud, Adrien. “Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings.” 2018. Doctoral Dissertation, Paris Saclay. Accessed January 23, 2020. http://www.theses.fr/2018SACLS512.

MLA Handbook (7^th Edition):

Arnaud, Adrien. “Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings.” 2018. Web. 23 Jan 2020.

Vancouver:

Arnaud A. Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings. [Internet] [Doctoral dissertation]. Paris Saclay; 2018. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2018SACLS512.

Council of Science Editors:

Arnaud A. Études et conception d'algorithmes de reconstruction 3D sur tablettes : génération automatique de modèles 3D éditables de bâtiments existants : Study and Conception of 3D Reconstruction Algorithms on Tablets : Automatic Generation of 3D Editable Models of Existing Buildings. [Doctoral Dissertation]. Paris Saclay; 2018. Available from: http://www.theses.fr/2018SACLS512

13. Hmida, Rihab. Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics.

Degree: Docteur es, Systèmes automatiques et micro-électroniques, 2016, Montpellier; Laboratoire d'électronique et de micro-électronique (Monastir, Tunisie)

URL: http://www.theses.fr/2016MONTT335

►

Avec l’évolution des processus technologiques, l’intérêt pour la robotique mobile n’a de cesse d’augmenter depuis quelques années, notamment pour remplacer l’homme dans des environnements à… (more)

▼

Avec l’évolution des processus technologiques, l’intérêt pour la robotique mobile n’a de cesse d’augmenter depuis quelques années, notamment pour remplacer l’homme dans des environnements à risque (zones radioactives, robots militaires) ou des zones qui lui sont inaccessibles (exploration planétaire ou sous-marine), ou à des échelles différentes (robot à l’intérieur d’une canalisation, voire robot chirurgical à l’intérieur du corps humain). Dans ce même contexte, les systèmes de navigation destinés plus particulièrement à l’exploration sous-marine suscitent de plus en plus l’intérêt de plusieurs géologues, roboticiens et scientifiques en vue de mieux connaître et caractériser les réseaux sous-marins. Pour des raisons de sécurité optimale, de nouvelles technologies (Radar, Sonar, système de caméras,..) ont été développées pour remplacer les plongeurs humains.C’est dans ce cadre que s’intègre les travaux de cette thèse ayant comme objectif la mise en œuvre d’un système de vision stéréoscopique permettant l’acquisition d’informations utiles et le développement d’un algorithme pour la restitution de la structure 3D d’un environnement confiné aquatique. Notre système est composé d’une paire de capteurs catadioptriques et d’une ceinture de pointeurs lasers permettant d’identifier des amers visuels de la scène et d’une plateforme pour l’exécution du processus de traitement des images acquises. La chaîne de traitement est précédée par une phase d’étalonnage effectuée hors-ligne pour la modélisation géométrique du système complet. L’algorithme de traitement consiste à une analyse pixellique des images stéréoscopiques pour l’extraction des projections lasers 2D et reconstruire leurs correspondants 3D en se basant sur les paramètres d’étalonnage.La mise en œuvre du système complet sur une plateforme logicielle demande un temps d’exécution supérieur à celui exigé par l’application. Les travaux clôturant ce mémoire s’adressent à cette problématique, et proposent une solution permettant de simplifier le développement et l’implémentation d’applications temps-réel sur des plateformes basées sur un dispositif FPGA. La mise en œuvre de notre application a été effectuée et une étude des performances est présentée tout en considérant les besoins de l’application et ses exigences de point de vue précision, rapidité et taux d’efficacité.

With the development of technological processes, interest in mobile robotics is constantly increasing in recent years, particularly to replace human in environments of risk (radioactive areas, military robots) or areas that are inaccessible (planetary or underwater exploration), or at different scales (robot within a pipeline or surgical robot inside the human body). In the same context, navigation systems are designed specifically for underwater exploration which is attracting more and more interest of several geologists, robotics and scientists in order to better understand and characterize submarine environment. For optimal security, new technologies (radar, sonar, camera system, ..) have been…

Advisors/Committee Members: Zapata, Réné (thesis director), Mtibaa, Abdellatif (thesis director).

Subjects/Keywords: Vision; Reconstruction 3D; Robotique; Vision; 3D reconstruction; Robotics

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

APA (6^th Edition):

Hmida, R. (2016). Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics. (Doctoral Dissertation). Montpellier; Laboratoire d'électronique et de micro-électronique (Monastir, Tunisie). Retrieved from http://www.theses.fr/2016MONTT335

Chicago Manual of Style (16^th Edition):

Hmida, Rihab. “Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics.” 2016. Doctoral Dissertation, Montpellier; Laboratoire d'électronique et de micro-électronique (Monastir, Tunisie). Accessed January 23, 2020. http://www.theses.fr/2016MONTT335.

MLA Handbook (7^th Edition):

Hmida, Rihab. “Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics.” 2016. Web. 23 Jan 2020.

Vancouver:

Hmida R. Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics. [Internet] [Doctoral dissertation]. Montpellier; Laboratoire d'électronique et de micro-électronique (Monastir, Tunisie); 2016. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2016MONTT335.

Council of Science Editors:

Hmida R. Vision et reconstruction 3D : application à la robotique mobile : Vision and 3D reconstruction : application to Mobile Robotics. [Doctoral Dissertation]. Montpellier; Laboratoire d'électronique et de micro-électronique (Monastir, Tunisie); 2016. Available from: http://www.theses.fr/2016MONTT335

University of Wisconsin – Milwaukee

14. Rehman, Waleedur. 3D SEM Surface Reconstruction from Multi-View Images.

Degree: MS, Computer Science, 2018, University of Wisconsin – Milwaukee

URL: https://dc.uwm.edu/etd/1908

► The scanning electron microscope (SEM), a promising imaging equipment has been used to determine the surface properties such as compositions or geometries of specimens… (more)

Subjects/Keywords: 3D Reconstruction; 3D surface reconstruction; Multi-view; SEM; Computer Sciences

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

APA (6^th Edition):

Rehman, W. (2018). 3D SEM Surface Reconstruction from Multi-View Images. (Thesis). University of Wisconsin – Milwaukee. Retrieved from https://dc.uwm.edu/etd/1908

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):

Rehman, Waleedur. “3D SEM Surface Reconstruction from Multi-View Images.” 2018. Thesis, University of Wisconsin – Milwaukee. Accessed January 23, 2020. https://dc.uwm.edu/etd/1908.

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

MLA Handbook (7^th Edition):

Rehman, Waleedur. “3D SEM Surface Reconstruction from Multi-View Images.” 2018. Web. 23 Jan 2020.

Vancouver:

Rehman W. 3D SEM Surface Reconstruction from Multi-View Images. [Internet] [Thesis]. University of Wisconsin – Milwaukee; 2018. [cited 2020 Jan 23]. Available from: https://dc.uwm.edu/etd/1908.

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

Council of Science Editors:

Rehman W. 3D SEM Surface Reconstruction from Multi-View Images. [Thesis]. University of Wisconsin – Milwaukee; 2018. Available from: https://dc.uwm.edu/etd/1908

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

15. Burns, Calum. Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction.

Degree: Docteur es, Traitement du signal et des images, 2018, Paris Saclay

URL: http://www.theses.fr/2018SACLS026

► La reconstruction 3D multi-vue atteint désormais un niveau de maturité industrielle : des utilisateurs non-experts peuvent produire des modèles 3D large-échelle de qualité à l'aide… (more)

▼ La reconstruction 3D multi-vue atteint désormais un niveau de maturité industrielle : des utilisateurs non-experts peuvent produire des modèles 3D large-échelle de qualité à l'aide de logiciels commerciaux. Ces reconstructions utilisent des capteurs haut de gamme comme des LIDAR ou des appareils photos de type DSLR, montés sur un trépied et déplacés autour de la scène. Ces protocoles d'acquisition sont mal adaptés à l’inspection d’infrastructures de grande taille, à géométrie complexe. Avec l'évolution rapide des capacités des micro-drones, il devient envisageable de leur confier ce type de tâche. Un tel choix modifie les données d’acquisition : on passe d’un ensemble restreint de photos de qualité, soigneusement acquises par l’opérateur, à une séquence d'images à cadence vidéo, sujette à des variations de qualité image dues, par exemple, au bougé et au défocus.Les données vidéo posent problème aux logiciels de photogrammétrie du fait de la combinatoire élevée engendrée par le grand nombre d’images. Nous proposons d’exploiter l’intégralité des images en deux étapes. Au cours de la première, la reconstruction 3D est obtenue en sous-échantillonnant temporellement la séquence, lors de la seconde, la restitution haute résolution de texture est obtenue en exploitant l'ensemble des images. L'intérêt de la texture est de permettre de visualiser des détails fins du modèle numérisé qui ont été perdus dans le bruit géométrique de la reconstruction. Cette augmentation de qualité se fait via des techniques de Super Résolution (SR).Pour atteindre cet objectif nous avons conçu et réalisé une chaîne algorithmique prenant, en entrée, la séquence vidéo acquise et fournissant, en sortie, un modèle 3D de la scène avec une texture sur-résolue. Cette chaîne est construite autour d’un algorithme de reconstruction 3D multi-vues de l’état de l’art pour la partie géométrique.Une contribution centrale de notre chaîne est la méthode de recalage employée afin d’atteindre la précision sub-pixellique requise pour la SR. Contrairement aux données classiquement utilisées en SR, nos prises de vues sont affectées par un mouvement 3D, face à une scène à géométrie 3D, ce qui entraîne des mouvements image complexes. La précision intrinsèque des méthodes de reconstruction 3D est insuffisante pour effectuer un recalage purement géométrique, ainsi nous appliquons un raffinement supplémentaire par flot optique. Le résultat de cette méthode de restitution de texture SR est d'abord comparée qualitativement à une approche concurrente de l’état de l’art.Ces appréciations qualitatives sont renforcées par une évaluation quantitative de qualité image. Nous avons à cet effet élaboré un protocole d’évaluation quantitatif de techniques de SR appliquées sur des surfaces 3D. Il est fondé sur l'utilisation de mires fractales binaires, initialement proposées par S. Landeau. Nous avons étendu ces idées au contexte de SR sur des surfaces courbes. Cette méthode est employée ici pour valider les choix de notre méthode de SR, mais elle s'applique à l'évaluation de toute… Advisors/Committee Members: Champagnat, Frédéric (thesis director).

Subjects/Keywords: Reconstruction 3D; Super résolution; Texture; 3D Reconstruction; Super resolution; Texture mapping

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

APA (6^th Edition):

Burns, C. (2018). Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2018SACLS026

Chicago Manual of Style (16^th Edition):

Burns, Calum. “Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction.” 2018. Doctoral Dissertation, Paris Saclay. Accessed January 23, 2020. http://www.theses.fr/2018SACLS026.

MLA Handbook (7^th Edition):

Burns, Calum. “Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction.” 2018. Web. 23 Jan 2020.

Vancouver:

Burns C. Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction. [Internet] [Doctoral dissertation]. Paris Saclay; 2018. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2018SACLS026.

Council of Science Editors:

Burns C. Super résolution de texture pour la reconstruction 3D fine : Texture Super Resolution for 3D Reconstruction. [Doctoral Dissertation]. Paris Saclay; 2018. Available from: http://www.theses.fr/2018SACLS026

Brno University of Technology

16. Karásek, Miroslav. Zpracování a vizualizace stereo snímků .

Degree: 2012, Brno University of Technology

URL: http://hdl.handle.net/11012/17300

► Tato práce se zabývá problematikou zpracování stereo snímků. Jsou v ní popsány principy kalibrace a rektifikace stereo snímků. V práci je uvedeno několik metod hledání… (more)

Subjects/Keywords: 3D zobrazování; 3d rekonstrukce; 3d rektifikace; prezentace 3D obrazu; OpenCV; 3D imaging; 3d reconstruction; 3d rectification; 3D image presentation; OpenCV

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

APA (6^th Edition):

Karásek, M. (2012). Zpracování a vizualizace stereo snímků . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/17300

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):

Karásek, Miroslav. “Zpracování a vizualizace stereo snímků .” 2012. Thesis, Brno University of Technology. Accessed January 23, 2020. http://hdl.handle.net/11012/17300.

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

MLA Handbook (7^th Edition):

Karásek, Miroslav. “Zpracování a vizualizace stereo snímků .” 2012. Web. 23 Jan 2020.

Vancouver:

Karásek M. Zpracování a vizualizace stereo snímků . [Internet] [Thesis]. Brno University of Technology; 2012. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/11012/17300.

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

Council of Science Editors:

Karásek M. Zpracování a vizualizace stereo snímků . [Thesis]. Brno University of Technology; 2012. Available from: http://hdl.handle.net/11012/17300

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

17. Li, Si. Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle.

Degree: Docteur es, Traitement du signal et télécommunications, 2017, Rennes 1; Southeast university (Nanjing, China)

URL: http://www.theses.fr/2017REN1S133

►

L'angiographie coronarienne RX (ou coronarographie) reste la modalité de référence permettant de déterminer avec précision le degré et le nombre de sténoses coronariennes ainsi que… (more)

▼

L'angiographie coronarienne RX (ou coronarographie) reste la modalité de référence permettant de déterminer avec précision le degré et le nombre de sténoses coronariennes ainsi que le nombre de vaisseaux atteints. L'objectif de ce travail de thèse de doctorat concerne l'amélioration de la reconstruction 3D des coronaires afin d'améliorer le diagnostic, ainsi que la sécurité et la précision des interventions minimalement invasives. Dans un premier temps, une contribution majeure vise à améliorer l'étape de calibration du système d'imagerie rotationnelle R-X. Premièrement, nous avons donc proposé un nouvel algorithme de calibrage basé objet inspiré de la méthode de Xu et al, dédié au système robotisé Artis Zeego. Deuxièmement, nous transposons les géométries de projection dans le système de coordonnées du C-arm. Nous avons proposé des modèles de mouvement des géométries de projection en considérant objectivement et systématiquement tous les facteurs possibles. Ces modèles de mouvement permettent de simplifier la procédure de calibration en routine clinique. The résultats expérimentaux indiquent que les modèles de mouvement proposés ont une précision acceptable afin estimer les paramètres d'acquisition. Dans un second temps, une contribution majeure vise à proposer une nouvelle méthode de reconstruction des coronaires par compensation de mouvement. Les étapes de reconstruction sont: l'opérateur de projection, la segmentation des projections acquises, le recalage iconique, la reconstruction initiale et la reconstruction avec compensation de mouvement. Nous avons opté pour l'opérateur de projection Distance Driven simplifié proposé par Oukili. Nous avons adopté comme mesure de similarité l'information Mutuelle (MI) avec un terme de rigidité. Pour optimiser cette fonction de coût, nous avons utilisé la méthode Advanced Adaptive Stochastic Gradient Descent (ASGD). Nous avons adopté une reconstruction statistique itérative basée on MAP et l'a priori L0. Les résultats expérimentaux indiquent que la méthode proposée améliore visuellement la qualité de la reconstruction. Le contraste et les détails des reconstructions sont améliorés par compensation de mouvement.

The rotational angiography RX of the coronaries is a standard modality to determine the degree and the number of the coronaries stenosis. The objective of this dissertation aims at improving the 3D reconstruction of the coronary arteries, which can improve the diagnosis, the security and the precision of the minimal invasive interventions.For the first part, the major contribution is improving the calibration procedure of the rotational R-X imaging system. First, we propose a new calibration algorithm based on the classical helical phantom on the Artis-Zeego system. Second, we transfer the geometries to the C-arm coordinate system. Last, we propose the movement models of the projection geometries objectively and systematically at 3 representative work positions. The movement models simplify the clinical procedures. The experiment results indicate that the proposed…

Advisors/Committee Members: Toumoulin, Christine (thesis director), Luo, Limin (thesis director).

Subjects/Keywords: Artis-Zeego; Calibration; 3d reconstruction 3d; Modèles de mouvement; 3D reconstruction; Artis-Zeego

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

APA (6^th Edition):

Li, S. (2017). Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle. (Doctoral Dissertation). Rennes 1; Southeast university (Nanjing, China). Retrieved from http://www.theses.fr/2017REN1S133

Chicago Manual of Style (16^th Edition):

Li, Si. “Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle.” 2017. Doctoral Dissertation, Rennes 1; Southeast university (Nanjing, China). Accessed January 23, 2020. http://www.theses.fr/2017REN1S133.

MLA Handbook (7^th Edition):

Li, Si. “Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle.” 2017. Web. 23 Jan 2020.

Vancouver:

Li S. Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle. [Internet] [Doctoral dissertation]. Rennes 1; Southeast university (Nanjing, China); 2017. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2017REN1S133.

Council of Science Editors:

Li S. Data acquisition modeling and hybrid coronary tree 3D reconstruction in C-arm CBCT imaging : Modélisation du processus d'acquisition et reconstruction 3D hybride d'arbres coronaires en angiographie RX rotationelle. [Doctoral Dissertation]. Rennes 1; Southeast university (Nanjing, China); 2017. Available from: http://www.theses.fr/2017REN1S133

18. Gélard, William. Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties.

Degree: Docteur es, Informatique et robotique, 2018, Université Toulouse III – Paul Sabatier

URL: http://www.theses.fr/2018TOU30207

► L'augmentation constante de la demande alimentaire et énergétique dans le monde associée au réchauffement et changements climatiques ont poussé les recherches en agronomie vers le… (more)

▼ L'augmentation constante de la demande alimentaire et énergétique dans le monde associée au réchauffement et changements climatiques ont poussé les recherches en agronomie vers le développement d'une agriculture plus durable et l'amélioration de la performance des cultures. Pour répondre à ces demandes, les chercheurs ont concentré leurs efforts sur le développement de méthodes de génotypage à haut débit (l'étude de la séquence génomique des plantes) et ont permis aux biologistes d'identifier les génotypes d'une grande quantité de plantes. De plus, comprendre les relations qui lient les génotypes (ADN) aux phénotypes (caractéristiques visuelles) qui évoluent en fonction des conditions d'irrigation, d'illumination ou de température est devenu un enjeu majeur dans la recherche agricole. Alors que les méthodes de génotypage ont été rapidement améliorées et automatisées au cours de la dernière décennie, les méthodes de phénotypage restent manuelles et parfois destructrices. Ces méthodes consistent à mesurer certains paramètres visuels d'une plante telle que : la hauteur de la tige principale, le nombre de feuilles, les angles d'initiation des feuilles ou la surface foliaire et plus important encore, à suivre ces paramètres tout au long de la croissance des plantes. Par conséquent, le nombre de plantes à cultiver est très important et les mesures prennent beaucoup de temps. Avec l'émergence des nouvelles technologies en vision par ordinateur et en robotique, les chercheurs en agronomie y ont vu un intérêt certain en vue d'automatiser la collecte et les mesures des données visuelles sur les plantes. La thèse porte sur la conception, le développement et la validation de traitements haut débit à exécuter automatiquement sur des images acquises sur des plantes de tournesol, en vue d'amplifier les capacités de phénotypage par les chercheurs en agronomie (et ultérieurement les évaluateurs de variétés et les semenciers). L'objectif est la mise au point d'un protocole d'acquisition d'images (en plante isolée) depuis un robot mobile (ou un système d'acquisition autonome) permettant d'améliorer, de moderniser et d'automatiser les méthodes de phénotypage actuelles afin d'aider les chercheurs en agronomie à collecter une grande quantité de données. Motivés par le souhait d'effectuer un phénotypage à haut débit, nous proposons une approche 3D pour extraire automatiquement les caractéristiques visuelles des plantes de tournesol cultivées en pot. Tout d'abord, un nuage de points 3D d'une plante est acquis avec des techniques classiques de Structure-from-Motion. Une étape de segmentation est ensuite effectuée pour extraire la tige principale et les feuilles. Dans le but de suivre les caractéristiques visuelles pendant la croissance des plantes, en particulier, suivre l'expansion foliaire de chaque feuille, une étape de labellisation basée sur le modèle botanique d'une plante est appliquée pour leur affecter une étiquette unique qui ne changera pas avec le temps. Enfin, les caractéristiques visuelles sont extraites et les résultats… Advisors/Committee Members: Herbulot, Ariane (thesis director), Debaeke, Philippe (thesis director).

Subjects/Keywords: Phénotypage 3D; Tournesols; Reconstruction et segmentation 3D; Nuages de points 3D

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

APA (6^th Edition):

Gélard, W. (2018). Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties. (Doctoral Dissertation). Université Toulouse III – Paul Sabatier. Retrieved from http://www.theses.fr/2018TOU30207

Chicago Manual of Style (16^th Edition):

Gélard, William. “Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties.” 2018. Doctoral Dissertation, Université Toulouse III – Paul Sabatier. Accessed January 23, 2020. http://www.theses.fr/2018TOU30207.

MLA Handbook (7^th Edition):

Gélard, William. “Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties.” 2018. Web. 23 Jan 2020.

Vancouver:

Gélard W. Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties. [Internet] [Doctoral dissertation]. Université Toulouse III – Paul Sabatier; 2018. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2018TOU30207.

Council of Science Editors:

Gélard W. Modélisation 3D et suivi visuel pour caractériser le phénotype de variétés de tournesol : 3D modeling and tracking to characterize the phenotype of sunflower varieties. [Doctoral Dissertation]. Université Toulouse III – Paul Sabatier; 2018. Available from: http://www.theses.fr/2018TOU30207

Université Montpellier II

19. Méline, Arnaud. Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping.

Degree: Docteur es, Systèmes Automatiques et Microélectroniques, 2013, Université Montpellier II

URL: http://www.theses.fr/2013MON20005

►

Le but de ce travail est d'analyser des scènes sous-marines naturelles et en particulier cartographier des environnements sous-marins en 3D. Il existe aujourd'hui de nombreuses… (more)

▼

Le but de ce travail est d'analyser des scènes sous-marines naturelles et en particulier cartographier des environnements sous-marins en 3D. Il existe aujourd'hui de nombreuses techniques pour résoudre ce problème. L'originalité de ce travail se trouve dans la fusion de deux cartes obtenues avec des capteurs de différentes résolutions. Dans un premier temps, un engin autonome (ou un bateau) analyse les fonds marins avec un sonar multifaisceaux et crée une première carte globale de la zone. Cette carte est ensuite décomposée en petites cellules représentant une mosaïque du fond marin. Une deuxième analyse est ensuite réalisée sur certaines cellules particulières à l'aide d'un second capteur avec une résolution plus élevée. Cela permettra d'obtenir une carte détaillée 3D de la cellule. Un véhicule autonome sous-marin ou un plongeur muni d'un système de vision stéréoscopique effectuera cette acquisition.Ce projet se décompose en deux parties, la première s'intéressera à la reconstruction 3D de scènes sous-marines en milieu contraint à l'aide d'une paire stéréoscopique. La deuxième partie de l'étude portera sur l'aspect multimodal. Dans notre cas, nous utilisons cette méthode pour obtenir des reconstructions précises d'objets d'intérêts archéologiques (statues, amphores, etc.) détectés sur la carte globale.La première partie du travail concerne la reconstruction 3D de la scène sous-marine. Même si aujourd'hui le monde de la vision a permis de mieux appréhender ce type d'image, l'étude de scène sous-marine naturelle pose encore de nombreux problèmes. Nous avons pris en compte les bruits sous-marins lors de la création du modèle 3D vidéo ainsi que lors de la calibration des appareils photos. Une étude de robustesse à ces bruits a été réalisée sur deux méthodes de détections et d'appariements de points d'intérêt. Cela a permis d'obtenir des points caractéristiques précis et robustes pour le modèle 3D. La géométrie épipolaire nous a permis de projeter ces points en 3D. La texture a été ajoutée sur les surfaces obtenues par triangulation de Delaunay.La deuxième partie consiste à fusionner le modèle 3D obtenu précédemment et la carte acoustique. Dans un premier temps, afin d'aligner les deux modèles 3D (le modèle vidéo et le modèle acoustique), nous appliquons un recalage approximatif en sélectionnant manuellement quelques paires de points équivalents sur les deux nuages de points. Pour augmenter la précision de ce dernier, nous utilisons un algorithme ICP (Iterative Closest Points).Dans ce travail nous avons créé une carte 3D sous-marine multimodale réalisée à l'aide de modèles 3D « vidéo » et d'une carte acoustique globale.

This work aims to analyze natural underwater scenes and it focuses on mapping underwater environment in 3D. Today, many methods exist to solve this problem. The originality of this work lies in the fusion of two maps obtained from sensors of different resolutions. Initially, an autonomous vehicle (or boat) analyzes the seabed with multibeam sonar and creates a first global map of the area. This map is…

Advisors/Committee Members: Jouvencel, Bruno (thesis director), Triboulet, Jean (thesis director).

Subjects/Keywords: Vision sous-marine; Reconstruction 3D; Fusion / Recalage 3D; Cartographie; Underwater vision; 3D reconstruction; Fusion / 3D registration; Mapping

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

APA (6^th Edition):

Méline, A. (2013). Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping. (Doctoral Dissertation). Université Montpellier II. Retrieved from http://www.theses.fr/2013MON20005

Chicago Manual of Style (16^th Edition):

Méline, Arnaud. “Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping.” 2013. Doctoral Dissertation, Université Montpellier II. Accessed January 23, 2020. http://www.theses.fr/2013MON20005.

MLA Handbook (7^th Edition):

Méline, Arnaud. “Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping.” 2013. Web. 23 Jan 2020.

Vancouver:

Méline A. Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping. [Internet] [Doctoral dissertation]. Université Montpellier II; 2013. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2013MON20005.

Council of Science Editors:

Méline A. Fusion multimodale pour la cartographie sous-marine : Multimodal fusion for underwater mapping. [Doctoral Dissertation]. Université Montpellier II; 2013. Available from: http://www.theses.fr/2013MON20005

University of Alberta

20. Guo,Xingzhou. Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study.

Degree: MS, Department of Civil and Environmental Engineering, 2016, University of Alberta

URL: https://era.library.ualberta.ca/files/cb5644r761

► Construction sites are the place where personnel and equipment work closely. In such workplaces, human movement dynamically adapts to the surrounding circumstances which are congested… (more)

Subjects/Keywords: Trajectories; Built workplaces; 3D reconstruction; Safety; Health

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

APA (6^th Edition):

Guo,Xingzhou. (2016). Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cb5644r761

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Guo,Xingzhou. “Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study.” 2016. Masters Thesis, University of Alberta. Accessed January 23, 2020. https://era.library.ualberta.ca/files/cb5644r761.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Guo,Xingzhou. “Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study.” 2016. Web. 23 Jan 2020.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Guo,Xingzhou. Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study. [Internet] [Masters thesis]. University of Alberta; 2016. [cited 2020 Jan 23]. Available from: https://era.library.ualberta.ca/files/cb5644r761.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Guo,Xingzhou. Vision-based Tracking of Worker Trajectories in Built Workplaces for Safety and Health Study. [Masters Thesis]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/cb5644r761

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

NSYSU

21. Liu, Qiao-Yuan. 3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION.

Degree: Master, Electro-Optical Engineering, 2008, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-153522

► A projected fringe profilometry (PFP) is an optical measurements technology which is widely used at present in gauging the object's three dimensional appearance. PFP is… (more)

Subjects/Keywords: 3D shape reconstruction; projected fringe profilometry

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

APA (6^th Edition):

Liu, Q. (2008). 3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-153522

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):

Liu, Qiao-Yuan. “3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION.” 2008. Thesis, NSYSU. Accessed January 23, 2020. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-153522.

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

MLA Handbook (7^th Edition):

Liu, Qiao-Yuan. “3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION.” 2008. Web. 23 Jan 2020.

Vancouver:

Liu Q. 3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION. [Internet] [Thesis]. NSYSU; 2008. [cited 2020 Jan 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-153522.

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

Council of Science Editors:

Liu Q. 3D SHAPE RECONSTRUCTION USING PROJECTED FRINGE PROFILOMETRY FOR AN IMAGE BLURRED BY LINEAR MOTION. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-153522

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

Universiteit Utrecht

22. Winden, K. van. Automatically Constructing the Third Dimension of IMGeo.

Degree: 2012, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/259136

► The past year a new Dutch standard for the registration of large scale topography was released, called IMGeo 2.0. This standard includes descriptions and attributes… (more)

▼ The past year a new Dutch standard for the registration of large scale topography was released, called IMGeo 2.0. This standard includes descriptions and attributes for the majority of objects seen in public spaces. A possible extension to IMGeo 2.0 allows all objects to be modelled in 3D, based on object descriptions and techniques from the CityGML standard. This thesis explores the feasibility of automatically constructing such 3D models by combining 2D geometries and 3D height information. Numerous methods for this type of construction already exist, differing in objects reconstructed, amount of detail, restrictions on construction approach, assumptions on input data and requirements on output data. The approaches created in this thesis aim to construct 3D models in a robust way, accepting sub-optimal results as long as they are a decent and valid representation of reality. Four different construction methods were designed. The first builds large 2.5D terrain models based on point triangulation. These 2.5D surface models form the basis of the actual 3D models. The second and third method construct horizontal roof 3D block models of buildings, with one approach dividing the roof based on point clusters and the other using repeated square subdivisions. The last and most complex method tries to construct 3D building models with full roof shapes using plane and line detection techniques. Degrees of success vary across these methods, with lower success rates the more complex the models become. The constructed terrain model has a number of improvements over a standard triangulation, but terrain generalization is really a field of its own and a lot more improvement can be accomplished. The methods for block models proved to be robust and performed quite well, but can be improved with respect to roof border accuracy. The method that constructs full roof shapes is not robust enough yet, but shows promising possibilities. Overall some creative ways to automatically construct 3D models have been designed, either entirely from scratch or as a modification of existing work, combining techniques from amongst others the fields of geometric algorithms and image processing. Advisors/Committee Members: Kreveld, M.J. van.

Subjects/Keywords: IMGeo; 3D; terrain model; building reconstruction

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

APA (6^th Edition):

Winden, K. v. (2012). Automatically Constructing the Third Dimension of IMGeo. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/259136

Chicago Manual of Style (16^th Edition):

Winden, K van. “Automatically Constructing the Third Dimension of IMGeo.” 2012. Masters Thesis, Universiteit Utrecht. Accessed January 23, 2020. http://dspace.library.uu.nl:8080/handle/1874/259136.

MLA Handbook (7^th Edition):

Winden, K van. “Automatically Constructing the Third Dimension of IMGeo.” 2012. Web. 23 Jan 2020.

Vancouver:

Winden Kv. Automatically Constructing the Third Dimension of IMGeo. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2020 Jan 23]. Available from: http://dspace.library.uu.nl:8080/handle/1874/259136.

Council of Science Editors:

Winden Kv. Automatically Constructing the Third Dimension of IMGeo. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/259136

University of California – Irvine

23. Rodriguez Alegre, Irene. Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation.

Degree: Electrical and Computer Engineering, 2015, University of California – Irvine

URL: http://www.escholarship.org/uc/item/5p38c1hj

► One of the most helpful factors to consider when evaluating the development of breast cancer is the independent risk factor known as breast density. The… (more)

Subjects/Keywords: Engineering; 3D reconstruction; Breast MRI; MRI; Segmentation

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

APA (6^th Edition):

Rodriguez Alegre, I. (2015). Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation. (Thesis). University of California – Irvine. Retrieved from http://www.escholarship.org/uc/item/5p38c1hj

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):

Rodriguez Alegre, Irene. “Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation.” 2015. Thesis, University of California – Irvine. Accessed January 23, 2020. http://www.escholarship.org/uc/item/5p38c1hj.

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

MLA Handbook (7^th Edition):

Rodriguez Alegre, Irene. “Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation.” 2015. Web. 23 Jan 2020.

Vancouver:

Rodriguez Alegre I. Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation. [Internet] [Thesis]. University of California – Irvine; 2015. [cited 2020 Jan 23]. Available from: http://www.escholarship.org/uc/item/5p38c1hj.

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

Council of Science Editors:

Rodriguez Alegre I. Breast MRI Segmentation and Density Analysis, 3D Model Reconstruction and Quadrant Regional Segmentation. [Thesis]. University of California – Irvine; 2015. Available from: http://www.escholarship.org/uc/item/5p38c1hj

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

24. Nawaf, Mohamad Motasem. 3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo.

Degree: Docteur es, Image, vision, signal, 2014, Saint-Etienne

URL: http://www.theses.fr/2014STET4024

► Dans le domaine de la vision par ordinateur, l’estimation de la structure d’une scène 3D à partir d’images 2D constitue un problème fondamental. Parmi les… (more)

▼ Dans le domaine de la vision par ordinateur, l’estimation de la structure d’une scène 3D à partir d’images 2D constitue un problème fondamental. Parmi les applications concernées par cette problématique, nous nous sommes intéressés dans le cadre de cette thèse à la modélisation d’un environnement urbain. Nous nous sommes intéressés à la reconstruction de scènes 3D à partir d’images monoculaires générées par un véhicule en mouvement. Ici, plusieurs défis se posent à travers les différentes étapes de la chaine de traitement inhérente à la reconstruction 3D. L’un de ces défis vient du fait de l’absence de zones suffisamment texturées dans certaines scènes urbaines, d’où une reconstruction 3D (un nuage de points 3D) trop éparse. De plus, du fait du mouvement du véhicule, d’une image à l’autre il n’y a pas toujours un recouvrement suffisant entre différentes vues consécutives d’une même scène. Dans ce contexte, et ce afin de lever les verrous ci-dessus mentionnés, nous proposons d’estimer, de reconstruire, la structure d’une scène 3D par morceaux en se basant sur une hypothèse de planéité. Nous proposons plusieurs améliorations à la chaine de traitement associée à la reconstruction 3D. D’abord, afin de structurer, de représenter, la scène sous la forme d’entités planes nous proposons une nouvelle méthode de reconstruction 3D, basée sur le regroupement de pixels similaires (superpixel segmentation), qui à travers une représentation multi-échelle pondérée fusionne les informations de couleur et de mouvement. Cette méthode est basée sur l’estimation de la probabilité de discontinuités locales aux frontières des régions calculées à partir du gradient (gradientbased boundary probability estimation). Afin de prendre en compte l’incertitude liée à l’estimation du mouvement, une pondération par morceaux est appliquée à chaque pixel en fonction de cette incertitude. Cette méthode génère des regroupements de pixels (superpixels) non contraints en termes de taille et de forme. Pour certaines applications, telle que la reconstruction 3D à partir d’une séquence d’images, des contraintes de taille sont nécessaires. Nous avons donc proposé une méthode qui intègre à l’algorithme SLIC (Simple Linear Iterative Clustering) l’information de mouvement. L’objectif étant d’obtenir une reconstruction 3D plus dense qui estime mieux la structure de la scène. Pour atteindre cet objectif, nous avons aussi introduit une nouvelle distance qui, en complément de l’information de mouvement et de données images, prend en compte la densité du nuage de points. Afin d’augmenter la densité du nuage de points utilisé pour reconstruire la structure de la scène sous la forme de surfaces planes, nous proposons une nouvelle approche qui mixte plusieurs méthodes d’appariement et une méthode de flot optique dense. Cette méthode est basée sur un système de pondération qui attribue un poids pré-calculé par apprentissage à chaque point reconstruit. L’objectif est de contrôler l’impact de ce système de pondération, autrement dit la qualité de la reconstruction, en… Advisors/Committee Members: Trémeau, Alain (thesis director).

Subjects/Keywords: Reconstruction 3D; Regroupement de pixels; Structure du mouvement; Regroupement; Modélisation 3D; Reconstruction urbaine; Apprentissage automatique; 3D reconstruction; Superpixel segmentation; Structure from motion; Clustering; 3D modeling; Urban reconstruction; Machine learning

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

APA (6^th Edition):

Nawaf, M. M. (2014). 3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo. (Doctoral Dissertation). Saint-Etienne. Retrieved from http://www.theses.fr/2014STET4024

Chicago Manual of Style (16^th Edition):

Nawaf, Mohamad Motasem. “3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo.” 2014. Doctoral Dissertation, Saint-Etienne. Accessed January 23, 2020. http://www.theses.fr/2014STET4024.

MLA Handbook (7^th Edition):

Nawaf, Mohamad Motasem. “3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo.” 2014. Web. 23 Jan 2020.

Vancouver:

Nawaf MM. 3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo. [Internet] [Doctoral dissertation]. Saint-Etienne; 2014. [cited 2020 Jan 23]. Available from: http://www.theses.fr/2014STET4024.

Council of Science Editors:

Nawaf MM. 3D structure estimation from image stream in urban environment : Estimation de la structure 3D d'un environnement urbain à partir d'un flux vidéo. [Doctoral Dissertation]. Saint-Etienne; 2014. Available from: http://www.theses.fr/2014STET4024

Virginia Tech

25. Kern, Alexander Marco. Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements.

Degree: MS, Mechanical Engineering, 2017, Virginia Tech

URL: http://hdl.handle.net/10919/77516

► The development and improvement of 3-D immersive audio is gaining momentum through the growing interest in virtual reality. Possible applications reach from recreating real world… (more)

Subjects/Keywords: 3D audio; immersive audio; sound field reconstruction

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APA (6^th Edition):

Kern, A. M. (2017). Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/77516

Chicago Manual of Style (16^th Edition):

Kern, Alexander Marco. “Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements.” 2017. Masters Thesis, Virginia Tech. Accessed January 23, 2020. http://hdl.handle.net/10919/77516.

MLA Handbook (7^th Edition):

Kern, Alexander Marco. “Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements.” 2017. Web. 23 Jan 2020.

Vancouver:

Kern AM. Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements. [Internet] [Masters thesis]. Virginia Tech; 2017. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/10919/77516.

Council of Science Editors:

Kern AM. Quantification of the performance of 3D sound field reconstruction algorithms using high-density loudspeaker arrays and 3rd order sound field microphone measurements. [Masters Thesis]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/77516

University of Cambridge

26. Logothetis, Fotios. Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling.

Degree: PhD, 2019, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/292450

► Object 3D reconstruction has always been one of the main objectives of computer vision. After many decades of research, most techniques are still unsuccessful at… (more)

▼ Object 3D reconstruction has always been one of the main objectives of computer vision. After many decades of research, most techniques are still unsuccessful at recovering high resolution surfaces, especially for objects with limited surface texture. Moreover, most shiny materials are particularly hard to reconstruct. Photometric Stereo (PS), which operates by capturing multiple images under changing illumination has traditionally been one of the most successful techniques at recovering a large amount of surface details, by exploiting the relationship between shading and local shape. However, using PS has been highly impractical because most approaches are only applicable in a very controlled lab setting and limited to objects experiencing diffuse reflection. Nevertheless, recent advances in differential modelling have made complicated Photometric Stereo models possible and variational optimisations for these kinds of models show remarkable resilience to real world imperfections such as non-Gaussian noise and other outliers. Thus, a highly accurate, photometric-based reconstruction system is now possible. The contribution of this thesis is threefold. First of all, the Photometric Stereo model is extended in order to be able to deal with arbitrary ambient lighting. This is a step towards acquisition in a non-fully controlled lab setting. Secondly, the need for a priori knowledge of the light source brightness and attenuation characteristics is relaxed as an alternating optimisation procedure is proposed which is able to estimate these parameters. This extension allows for quick acquisition with inexpensive LEDs that exhibit unpredictable illumination characteristics (flickering etc). Finally, a volumetric parameterisation is proposed which allows one to tackle the multi-view Photometric Stereo problem in a similar manner, in a simple unified differential model. This final extension allows for complete object reconstruction merging information from multiple images taken from multiple viewpoints and variable illumination. The theoretical work in this thesis is experimentally evaluated in a number of challenging real world experiments, with data captured by custom-made hardware. In addition, the applicability of the generality of the proposed models is demonstrated by presenting a differential model for the shape of polarisation problem, which leads to a unified optimisation problem, fusing information from both methods. This allows for the acquisition of geometrical information about objects such as semi-transparent glass, hitherto hard to deal with.

Subjects/Keywords: Computer Vision; Photometric Stereo; 3D reconstruction

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

APA (6^th Edition):

Logothetis, F. (2019). Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/292450

Chicago Manual of Style (16^th Edition):

Logothetis, Fotios. “Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling.” 2019. Doctoral Dissertation, University of Cambridge. Accessed January 23, 2020. https://www.repository.cam.ac.uk/handle/1810/292450.

MLA Handbook (7^th Edition):

Logothetis, Fotios. “Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling.” 2019. Web. 23 Jan 2020.

Vancouver:

Logothetis F. Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2020 Jan 23]. Available from: https://www.repository.cam.ac.uk/handle/1810/292450.

Council of Science Editors:

Logothetis F. Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/292450

Cornell University

27. Wilson, Kyle. Robustly Modeling The World From Photos .

Degree: 2016, Cornell University

URL: http://hdl.handle.net/1813/44330

► A camera is a device for compressing rich information about the visual appearance of the three-dimensional world into a two-dimensional image. This process is inherently… (more)

▼ A camera is a device for compressing rich information about the visual appearance of the three-dimensional world into a two-dimensional image. This process is inherently lossy: given an image, we can make educated guesses about the world's shape and appearance, but there is not enough information for our guesses to be certain. However, if we take several pictures from different viewpoints we can reason more confidently. This thesis focuses on shape: How can we determine the geometry of the world from a collection of photos? This problem is classically called Structure from Motion. We find the structure (shape of the world) from camera motion (different viewpoints). Internet photo collections are an especially interesting source of data. With simple searches we can collect the raw information to reconstruct 3D models of famous world landmarks or entire cities. However, the photos we download are disorganized and noisy, and will not have been collected with 3D reconstruction in mind. While some impressive demonstrations of Structure from Motion systems exist, the next generation of solvers will need to be far more robust to the many types of difficulties encountered in the wild. To this end, many recent solvers pose the problem in a new way, using relative relationships between images to infer first the orientations, and then the positions of every camera in a scene. This framework promises faster runtime and greater robustness. I contribute a theoretical analysis of the difficulty of finding camera orientations, giving a way to decide which problems are tractable and which ones might be too hard and should be reformulated. I also propose a new solver with an accompanying outlier filter for finding camera positions. However, some of the hardest scenes are those which contain ambiguous structures: objects that look the same but are not. These induce self-consistent errors which are often too confusing for solvers to resolve correctly. I describe a scalable system which uses a graph-topological cue from a visibility graph to detect and remove these sources of error. Together these improvements work towards a robust solution to the Structure from Motion problem, so that we can reliably build 3D models of the world, even from noisy and confusing internet photo collections. Advisors/Committee Members: Connelly,Robert (committeeMember), Bindel,David S. (committeeMember), Bala,Kavita (committeeMember).

Subjects/Keywords: Computer Vision; Structure from Motion; 3D Reconstruction

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

APA (6^th Edition):

Wilson, K. (2016). Robustly Modeling The World From Photos . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/44330

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):

Wilson, Kyle. “Robustly Modeling The World From Photos .” 2016. Thesis, Cornell University. Accessed January 23, 2020. http://hdl.handle.net/1813/44330.

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

MLA Handbook (7^th Edition):

Wilson, Kyle. “Robustly Modeling The World From Photos .” 2016. Web. 23 Jan 2020.

Vancouver:

Wilson K. Robustly Modeling The World From Photos . [Internet] [Thesis]. Cornell University; 2016. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/1813/44330.

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

Council of Science Editors:

Wilson K. Robustly Modeling The World From Photos . [Thesis]. Cornell University; 2016. Available from: http://hdl.handle.net/1813/44330

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

University of Bath

28. Edum-Fotwe, Kwamina. Procedural reconstruction of architectural parametric models from airborne and ground laser scans.

Degree: Thesis (Eng.D.), 2018, University of Bath

URL: https://researchportal.bath.ac.uk/en/studentthesis/procedural-reconstruction-of-architectural-parametric-models-from-airborne-and-ground-laser-scans(24022dd5-8cec-4e9b-a3b6-683bc4afae9d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767574

► This research addresses the problem of efficiently and robustly reconstructing semantically-rich 3D architectural models from laser-scanned point-clouds. It first covers the pre-existing literature and industrial… (more)

Subjects/Keywords: 3D-Building-Reconstruction; Laser-Scanning; Procedural-Modelling

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

APA (6^th Edition):

Edum-Fotwe, K. (2018). Procedural reconstruction of architectural parametric models from airborne and ground laser scans. (Doctoral Dissertation). University of Bath. Retrieved from https://researchportal.bath.ac.uk/en/studentthesis/procedural-reconstruction-of-architectural-parametric-models-from-airborne-and-ground-laser-scans(24022dd5-8cec-4e9b-a3b6-683bc4afae9d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767574

Chicago Manual of Style (16^th Edition):

Edum-Fotwe, Kwamina. “Procedural reconstruction of architectural parametric models from airborne and ground laser scans.” 2018. Doctoral Dissertation, University of Bath. Accessed January 23, 2020. https://researchportal.bath.ac.uk/en/studentthesis/procedural-reconstruction-of-architectural-parametric-models-from-airborne-and-ground-laser-scans(24022dd5-8cec-4e9b-a3b6-683bc4afae9d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767574.

MLA Handbook (7^th Edition):

Edum-Fotwe, Kwamina. “Procedural reconstruction of architectural parametric models from airborne and ground laser scans.” 2018. Web. 23 Jan 2020.

Vancouver:

Edum-Fotwe K. Procedural reconstruction of architectural parametric models from airborne and ground laser scans. [Internet] [Doctoral dissertation]. University of Bath; 2018. [cited 2020 Jan 23]. Available from: https://researchportal.bath.ac.uk/en/studentthesis/procedural-reconstruction-of-architectural-parametric-models-from-airborne-and-ground-laser-scans(24022dd5-8cec-4e9b-a3b6-683bc4afae9d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767574.

Council of Science Editors:

Edum-Fotwe K. Procedural reconstruction of architectural parametric models from airborne and ground laser scans. [Doctoral Dissertation]. University of Bath; 2018. Available from: https://researchportal.bath.ac.uk/en/studentthesis/procedural-reconstruction-of-architectural-parametric-models-from-airborne-and-ground-laser-scans(24022dd5-8cec-4e9b-a3b6-683bc4afae9d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767574

KTH

29. Ivarsson, Caroline. Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models.

Degree: Geodesy and Geoinformatics, 2014, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164258

►

This thesis evaluates two different approaches of using panoramic street view images for creating more photo-realistic 3D city models comparing to 3D city models… (more)

▼

This thesis evaluates two different approaches of using panoramic street view images for creating more photo-realistic 3D city models comparing to 3D city models based on only aerial images. The thesis work has been carried out at Blom Sweden AB with the use of their software and data. The main purpose of this thesis work has been to investigate if street view images can aid in creating more photo-realistic 3D city models on street level through an automatic or semi-automatic approach. Two different approaches have been investigated in this thesis work: using the street view images for texturing already generated 3D building models and using the street view images directly for reconstructing 3D city models. Data was collected over the study area of KTH, Stockholm, Sweden and the models were created with the two software TerraPhoto, used for texturing, and Smart3DCapture, used for reconstruction. The created models were analyzed and compared with the models based on only aerial images and the two approaches were compared to each other. Through using also street view images when creating city models the models are shown to become more photo-realistic representations on street level compared to the models based on only aerial images. The two tested approaches create very different 3D city models in terms of what is visible in the final model, a textured buildings model or a fully reconstructed environment, and also contains different amount of involved manual work. The textured models contain only the buildings and tend to look very flat because the street images are being projected onto flat building walls whereas the reconstructed models reconstructs everything being visible in the images, trees, cars etc., and create a full scale 3D city model. There are however limitations associated with using street view images when modeling cities since they only contain information on the ground level and no information about roofs or higher parts of the city environment and the street view images therefore need to be used in combination with aerial images. Using the street view images for reconstructing city models showed some complications in terms of wavy facades, bumpy roads and objects such as trees being inaccurately modeled. The texturing approach creates less visually pleasing models since objects such as trees and lighting poles are being projected onto the facades. The models based on aerial images look more visually appealing compared to when also using the street view images but lack the resolution be considered as photo-realistic on street level. This thesis work has shown that there is potential in using street view images when creating photo-realistic 3D city models on street level even though it is not yet a semi-automatic or automatic approach.

Denna rapport beskriver två olika tillvägagångssätt för att använda panorama gatubilder för att skapa mer fotorealistiska 3D stadsmodeller jämfört med att enbart använda sig av flygbilder. Arbetet har genomförts i samarbete med Blom Sweden…

Subjects/Keywords: 3D city model; photo-realistic; texture; reconstruction

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

APA (6^th Edition):

Ivarsson, C. (2014). Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164258

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):

Ivarsson, Caroline. “Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models.” 2014. Thesis, KTH. Accessed January 23, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164258.

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

MLA Handbook (7^th Edition):

Ivarsson, Caroline. “Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models.” 2014. Web. 23 Jan 2020.

Vancouver:

Ivarsson C. Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models. [Internet] [Thesis]. KTH; 2014. [cited 2020 Jan 23]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164258.

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

Council of Science Editors:

Ivarsson C. Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models. [Thesis]. KTH; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164258

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

Linköping University

30. Jonsson, Mikael. Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes.

Degree: Computer Vision, 2016, Linköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589

►

The art of reconstructing a real-world scene digitally has been on the mind of researchers for decades. Recently, it has attracted more and more… (more)

▼

The art of reconstructing a real-world scene digitally has been on the mind of researchers for decades. Recently, it has attracted more and more attention from companies seeing a chance to bring this kind of technology to the market. Digital reconstruction of buildings in particular is a niche that has both potential and room for improvement. With this background, this thesis will present the design and evaluation of a pipeline made to find and correct approximately flat surfaces in architectural scenes. The scenes are 3D-reconstructed triangle meshes based on RGB images. The thesis will also comprise an evaluation of a few different components available for doing this, leading to a choice of best components. The goal is to improve the visual quality of the reconstruction. The final pipeline is designed with two blocks - one to detect initial plane seeds and one to refine the detected planes. The first block makes use of a multi-label energy formulation on the graph that describes the reconstructed surface. Penalties are assigned to each vertex and each edge of the graph based on the vertex labels, effectively describing a Markov Random Field. The energy is minimized with the help of the alpha-expansion algorithm. The second block uses heuristics for growing the detected plane seeds, merging similar planes together and extracting deviating details. Results on several scenes are presented, showing that the visual quality has been improved while maintaining accuracy compared with ground truth data.

Konsten att digitalt rekonstruera en verklig miljö har länge varit intressant för forskare. Nyligen har området även tilldragit sig mer och mer uppmärksamhet från företag som ser en möjlighet att föra den här typen av teknik till produkter på marknaden. I synnerhet är digital rekonstruktion av byggnader en nisch som har både stor potential och möjlighet till förbättring. Med denna bakgrund så presenterar detta examensarbete designen för och utvärderingen av en pipeline som skapats för att detektera och rätta till approximativt platta regioner i arkitektoniska miljöer. Miljöerna är 3D-rekonstruerade triangelmeshar skapade från RGB-bilder. Examensarbetet omfattar även utvärdering av olika komponenter för att uppnå detta, som avslutas med att de mest lämpliga komponenterna presenteras. Målet i korthet är att förbättra den visuella kvaliteten av en rekonstruerad modell. Den slutgiltiga pipelinen består av två övergripande block - ett för att detektera initiala plan och ett för att förbättra de funna planen. Det första blocket använder en multi-label energiformulering på grafen som beskriver den rekonstruerade ytan. Straffvärden tilldelas varje vertex och varje båge i grafen baserade på varje vertex label. På så sätt beskriver grafen ett Markov Random Field. Energin är sedan minimerad med alpha-expansion-algoritmen. Det andra blocket använder heuristiker för att låta planen växa, slå ihop närliggande plan och för att extrahera avvikande detaljer. Resultat på flera miljöer presenteras också för…

Subjects/Keywords: 3D reconstruction; Markov Random Field; plane detection

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APA (6^th Edition):

Jonsson, M. (2016). Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589

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):

Jonsson, Mikael. “Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes.” 2016. Thesis, Linköping University. Accessed January 23, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589.

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

MLA Handbook (7^th Edition):

Jonsson, Mikael. “Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes.” 2016. Web. 23 Jan 2020.

Vancouver:

Jonsson M. Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes. [Internet] [Thesis]. Linköping University; 2016. [cited 2020 Jan 23]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589.

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

Council of Science Editors:

Jonsson M. Make it Flat : Detection and Correction of Planar Regions in Triangle Meshes. [Thesis]. Linköping University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-126589

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

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Open Access Theses and Dissertations