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Relevant bibliographies by topics / Stereo geometry / Dissertations / Theses

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Dissertations / Theses on the topic 'Stereo geometry'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Sac, Hakan. "Opti-acoustic Stereo Imaging." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614782/index.pdf.

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In this thesis, opti-acoustic stereo imaging, which is the deployment of two-dimensional (2D) high frequency imaging sonar with the electro-optical camera in calibrated stereo configuration, is studied. Optical cameras give detailed images in clear waters. However, in dark or turbid waters, information coming from electro-optical sensor is insufficient for accurate scene perception. Imaging sonars, also known as acoustic cameras, can provide enhanced target details under these scenarios. To illustrate these visibility conditions, a 2D high frequency imaging sonar simulator as well as an und

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2

Bolelli, Maria Virginia. "Neurogeometry of stereo vision." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS107.

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Ce travail vise à développer un modèle neurogéométrique de la vision stéréo, basé sur les architectures corticales impliquées dans le problème de la perception 3D et les mécanismes neuronaux générés par les disparités rétiniennes. Nous l'appliquons pour reproduire des expériences phénoménologiques ainsi que pour traiter des images 3D, en identifiant des percepts visuels tridimensionnels dans l'espace, en résolvant le problème de correspondance. Tout d'abord, nous proposons une géométrie sub-riemannienne pour la vision stéréo. Cette proposition s'inspire du travail sur le problème de la stéréo

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3

Dal, Mutto Carlo. "Acquisition and Processing of ToF and Stereo data." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3422581.

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Providing a computer the capability to estimate the three-dimensional geometry of a scene is a fundamental problem in computer vision. A classical systems that has been adopted for solving this problem is the so-called stereo vision system (stereo system). Such a system is constituted by a couple of cameras and it exploits the principle of triangulation in order to provide an estimate of the framed scene. In the last ten years, new devices based on the time-of-flight principle have been proposed in order to solve the same problem, i.e., matricial Time-of-Flight range cameras (ToF cameras). Th

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4

Haša, Jiří. "Tvorba modelu (jeskyní) pomocí stereokamery." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2009. http://www.nusl.cz/ntk/nusl-236751.

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This document focuses on stereoscopic vision, machine vision and 3D scene reconstruction. First we create mathematic framework which is later used to determine solution for problems appearing during creation of scene reconstruction application.

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5

Singels, Francois. "Real-time stereo reconstruction using hierarchical dynamic programming and LULU filtering." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4294.

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Thesis (MSc (Mathematics))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: In this thesis we consider the essential topics relating to stereo-vision and the correspondence problem in general. The aim is to reconstruct a dense 3D scene from images captured by two spatially related cameras. Our main focus, however, is on speed and real-time implementation on a standard desktop PC. We wish to use the CPU to solve the correspondence problem and to reserve the GPU for model rendering. We discuss three fundamental types of algorithms and evaluate their suitability to this end. We event

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6

Stevens, Kimberly Ann. "Geometry and Material Properties of Vocal Fold Models." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5595.

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Voiced communication plays a fundamental role in society. Voice research seeks to improve understanding of the fundamental physics governing voice production, with the eventual goal of improving methods to diagnose and treat voice disorders. For this thesis, three different aspects of voice production research were studied. First, porcine vocal fold medial surface geometry was determined, and the three-dimensional geometric distortion induced by freezing the larynx, especially in the region of the vocal folds, was quantified. It was found that porcine vocal folds are qualitatively geometric

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7

Beermann, Rüdiger [Verfasser]. "Structured Light Sensor with Affine Stereo Camera Pair for Geometry Measurements of High-Temperature Components in Rough Vacuum / Rüdiger Beermann." Garbsen : TEWISS - Technik und Wissen GmbH, 2021. http://d-nb.info/1229012583/34.

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8

Trias, Lucas Padovani. "Janela 3D: uma ferramenta de telecomunicação visual sensível ao ponto de vista do usuário." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-03112009-170833/.

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Sistemas de teleconferência e telepresença são ferramentas de comunicação cada vez mais comuns. Partindo da existência de um canal de comunicação de alta capacidade, busca-se permitir visualização tridimensional realista, sensível ao ponto de vista do usuário e que mantenha a estrutura física da cena sem conhecimento prévio de sua estrutura, por meio de câmeras estéreo. A partir de pares de imagens temporalmente coerentes são sintetizadas visões intermediárias da cena alvo, de modo que um usuário rastreado tenha a ilusão de estar vendo a cena real através de uma janela. O sistema implementado

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9

Vavroš, Ondřej. "Měření vzdálenosti stereoskopickým senzorem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220333.

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This master's thesis will take us through theoretical procedure that allows us to determine the distance of an object by stereoscopic sensor. Part of this work presents the description of the steps to achieve image of objects, calibraton and rectification. At the next part our study provides an overview of algortihms for creating disparity maps and determining the distance of the object from sensor. In the following part of thesis deals with the implementation of these processes into aplication which aim is to measure the distance.

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10

Shahbazi, Mozhdeh. "On precise three-dimensional environment modeling via UAV-based photogrammetric systems." Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9439.

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Abstract : Images acquired from unmanned aerial vehicles (UAVs) can provide data with unprecedented spatial and temporal resolution for three-dimensional (3D) modeling. Solutions developed for this purpose are mainly operating based on photogrammetry concepts, namely UAV-Photogrammetry Systems (UAV-PS). Such systems are used in applications where both geospatial and visual information of the environment is required. These applications include, but are not limited to, natural resource management such as precision agriculture, military and police-related services such as traffic-law enforcement,

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11

Hasmanda, Martin. "Zpracování stereoskopické videosekvence." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218288.

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The main goal of this master’s thesis was get up used methods for observation the stereoscopic scene with one couple of cameras and find out good solving for processing these resulting pictures for two-view and multiple-view autostereoscopic displays for three-dimensional perception. For methods for acquisition video was introduced two methods. They were method “Off-axis” with parallel camera axis and method “Toe in” with intersections axis. For fit method was choice the method named as “Off-axis“. It was not produces the vertical parallax and in detail was in this work described principle of

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12

Hillgren, Patrik. "Geometric Scene Labeling for Long-Range Obstacle Detection." Thesis, Linköpings universitet, Datorseende, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-113126.

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Autonomous Driving or self driving vehicles are concepts of vehicles knowing their environment and making driving manoeuvres without instructions from a driver. The concepts have been around for decades but has improved significantly in the last years since research in this area has made significant progress. Benefits of autonomous driving include the possibility to decrease the number of accidents in traffic and thereby saving lives. A major challenge in autonomous driving is to acquire 3D information and relations between all objects in surrounding traffic. This is referred to as \textit{spa

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13

Alibhai, Shamez. "Curves, compatibility and correspondence : a differential-geometric approach to the stereo correspondence problem." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0003/MQ43992.pdf.

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14

Mumtaz, Rafia. "Attitude Determination by Exploiting Geometric Distortions in Stero Earth Images." Thesis, University of Surrey, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518706.

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15

Svoboda, Ondřej. "Analýza vlastností stereokamery ZED ve venkovním prostředí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399416.

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The Master thesis is focused on analyzing stereo camera ZED in the outdoor environment. There is compared ZEDfu visual odometry with commonly used methods like GPS or wheel odometry. Moreover, the thesis includes analyses of SLAM in the changeable outdoor environment, too. The simultaneous mapping and localization in RTAB-Map were processed separately with SIFT and BRISK descriptors. The aim of this master thesis is to analyze the behaviour ZED camera in the outdoor environment for future implementation in mobile robotics.

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16

Mutsvangwa, Tinashe E. M. "Characterization of the facial phenotype associated with fetal alcohol syndrome using stereo-photogrammetry and geometric morphometrics." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/12131.

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Includes abstract.<br>Includes bibliographical references (leaves 108-118).<br>Fetal Alcohol Syndrome (FAS) is a clinical condition caused by excessive pre-natal alcohol exposure and is regarded as a leading identifiable and preventable cause of mental retardation in the Western world. The highest prevalence of FAS was reported in the wine-growing regions of South Africa but data for the rest of the country is not available. Required, therefore, are large-scale screening and surveillance programmes to be conducted in South Africa in order for the epidemiology of the disease to be understood. E

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17

José, Marcelo Archanjo. "Reconstrução tridimensional de baixo custo a partir de par de imagens estéreo." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-13082008-133946/.

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A obtenção e a reconstrução da geometria tridimensional (3D) de objetos e ambientes têm importância crescente em áreas como visão computacional e computação gráfica. As formas atuais de obtenção e reconstrução 3D necessitam de equipamentos e montagens sofisticadas que, por conseqüência, têm custos elevados e aplicação limitada. Este trabalho apresenta criticamente os principais algoritmos para a reconstrução 3D a partir de par de imagens estéreo e identifica os mais viáveis para utilização com equipamentos convencionais. Por meio da implementação de alguns destes algoritmos, da comparação dos

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18

Al-Rousan, Naief Mahmoud. "System calibration, geometric accuracy testing and validation of DEM and orthoimage data extracted from spot stereo-pairs using commercially available image processing systems." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264262.

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19

Verdie, Yannick. "Modélisation de scènes urbaines à partir de données aériennes." Thesis, Nice, 2013. http://www.theses.fr/2013NICE4078.

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L'analyse et la reconstruction automatique de scène urbaine 3D est un problème fondamental dans le domaine de la vision par ordinateur et du traitement numérique de la géométrie. Cette thèse présente des méthodologies pour résoudre le problème complexe de la reconstruction d'éléments urbains en 3D à partir de données aériennes Lidar ou bien de maillages générés par imagerie Multi-View Stereo (MVS). Nos approches génèrent une représentation précise et compacte sous la forme d'un maillage 3D comportant une sémantique de l'espace urbain. Deux étapes sont nécessaires ; une identification des diffé

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20

Nugroho, Robertus Wahyu Nayan. "Modification of polymeric particles via surface grafting for 3D scaffold design." Doctoral thesis, KTH, Polymerteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174295.

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Surface modification techniques have played important roles in various aspects of modern technology. They have been employed to improve substrates by altering surface physicochemical properties. An ideal surface modifying technique would be a method that is applicable to any kind of materials prepared from a wide range of polymers and that can occur under mild reaction conditions. The work in this thesis has utilized four main concepts: I) the development of a ‘grafting-from’ technique by covalently growing polymer grafts from particle surfaces, II) the presence of steric and electrosteric for

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21

Verdie, Yannick. "Modélisation de scènes urbaines à partir de données aeriennes." Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00881242.

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L'analyse et la reconstruction automatique de scène urbaine 3D est un problème fondamental dans le domaine de la vision par ordinateur et du traitement numérique de la géométrie. Cette thèse présente des méthodologies pour résoudre le problème complexe de la reconstruction d'éléments urbains en 3D à partir de données aériennes Lidar ou bien de maillages générés par imagerie Multi-View Stereo (MVS). Nos approches génèrent une représentation précise et compacte sous la forme d'un maillage 3D comportant une sémantique de l'espace urbain. Deux étapes sont nécessaires; une identification des différ

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22

Wang, Bihao. "Geometrical and contextual scene analysis for object detection and tracking in intelligent vehicles." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2197/document.

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Pour les véhicules intelligents autonomes ou semi-autonomes, la perception constitue la première tâche fondamentale à accomplir avant la décision et l’action. Grâce à l’analyse des données vidéo, Lidar et radar, elle fournit une représentation spécifique de l’environnement et de son état, à travers l’extraction de propriétés clés issues des données des capteurs. Comparé à d’autres modalités de perception telles que le GPS, les capteurs inertiels ou les capteurs de distance (Lidar, radar, ultrasons), les caméras offrent la plus grande quantité d’informations. Grâce à leur polyvalence, les camér

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23

"Photometric stereo with discrete geometry processing." 2015. http://repository.lib.cuhk.edu.hk/en/item/cuhk-1291905.

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Xie, Wuyuan.<br>Thesis Ph.D. Chinese University of Hong Kong 2015.<br>Includes bibliographical references (leaves 79-83).<br>Abstracts also in Chinese.<br>Title from PDF title page (viewed on 30, November, 2016).

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24

"Generalized surface geometry estimation in photometric stereo and two-view stereo matching." 2011. http://library.cuhk.edu.hk/record=b5894611.

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Hung, Chun Ho.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2011.<br>Includes bibliographical references (p. 58-63).<br>Abstracts in English and Chinese.<br>Chapter 1 --- Introduction --- p.1<br>Chapter 2 --- Generalized Photometric Stereo --- p.6<br>Chapter 2.1 --- Problem Description --- p.6<br>Chapter 2.2 --- Related Work --- p.9<br>Chapter 2.3 --- Photometric Stereo with Environment Lighting --- p.11<br>Chapter 2.4 --- Estimating Surface Normals --- p.13<br>Chapter 2.4.1 --- Surface Normal and Albedo Estimation --- p.14<br>Chapter 2.5 --- Data Acquisition Configuration ---

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25

Liao, Yan-Fa, and 廖彥法. "Object Geometry Reconstruction by Stereo Image Data." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/11490319136841111262.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>93<br>In three dimensional object reconstructions, if the feature of its shape and corresponding edges can be extracted, the coordinate information can then be obtained in a efficient manner and the data will be useful to further applications. A non-touching approach to obtain three dimensional coordinate information of an object is to utilize Laser measurement system. The use of two images provided by the so called binocular vision mechanism with CCD cameras can also be applied. Through searching and comparing procedures, the projection images of interesting po

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Wu, Tsung-Hsien, and 吳宗憲. "GEOMETRY RECONSTRUCTION FOR REVERSE ENGINEERING USING PHOTOMETRIC STEREO TECHNOLOGY." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/20093600301594746582.

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碩士<br>大同大學<br>機械工程學系(所)<br>94<br>Abstract There are two problems that are regard as a bottleneck in the traditional geometry reconstruction by using a coordinate measuring machine. This is because that the geometric information lacks of before the digitizing process. (1) A fixed measuring span is adopted for the measuring strategy. (2) It cannot offer radius compensation for point data correctly and immediately. A photometric stereo technology based on neural network is presented for automatic acquisition process with adaptive measuring spans as well as correct and immediate probe radius

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27

Mellor, J. P., Seth Teller, and Tomas Lozano-Perez. "Dense Depth Maps from Epipolar Images." 1996. http://hdl.handle.net/1721.1/5939.

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Recovering three-dimensional information from two-dimensional images is the fundamental goal of stereo techniques. The problem of recovering depth (three-dimensional information) from a set of images is essentially the correspondence problem: Given a point in one image, find the corresponding point in each of the other images. Finding potential correspondences usually involves matching some image property. If the images are from nearby positions, they will vary only slightly, simplifying the matching process. Once a correspondence is known, solving for the depth is simply a matter

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28

Mellor, J. P. "Automatically Recovering Geometry and Texture from Large Sets of Calibrated Images." 1999. http://hdl.handle.net/1721.1/6766.

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Three-dimensional models which contain both geometry and texture have numerous applications such as urban planning, physical simulation, and virtual environments. A major focus of computer vision (and recently graphics) research is the automatic recovery of three-dimensional models from two-dimensional images. After many years of research this goal is yet to be achieved. Most practical modeling systems require substantial human input and unlike automatic systems are not scalable. This thesis presents a novel method for automatically recovering dense surface patches using large set

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29

Jaya, Kumar A. "Novel Applications Of Cooperative And Self-Organizing Neural Networks To Stereo-Disparity Estimation." Thesis, 2005. https://etd.iisc.ac.in/handle/2005/1446.

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30

Jaya, Kumar A. "Novel Applications Of Cooperative And Self-Organizing Neural Networks To Stereo-Disparity Estimation." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1446.

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31

Hsu, Cheng-Yi, and 許丞毅. "Research on Application of Multi-view Stereo Geometry Technology to 3D Reconstruction of the Traffic Accident Scene." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/07405795685220178521.

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碩士<br>嘉南藥理大學<br>應用空間資訊系<br>103<br>Usually police officers use Cartesian coordinates method and three-point positioning from the distance of the measuring wheel to get in-sight trace from accident scene. and take accident scene photos as evidence, however site mapping time takes a long time. This study intends to take in-sight photos or videos by phone, Digital SLR and UAV, and then use multi-view geometry theory to photograph the accident scene or image 3D reconstruction, three-dimensional point clouds and orthoimage, and from the three-dimensional point cloud and positive measurements carried

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32

Liu, Chris Yu-Liang. "Three-Dimensional Hand Tracking and Surface-Geometry Measurement for a Robot-Vision System." Thesis, 2009. http://hdl.handle.net/10012/4211.

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Tracking of human motion and object identification and recognition are important in many applications including motion capture for human-machine interaction systems. This research is part of a global project to enable a service robot to recognize new objects and perform different object-related tasks based on task guidance and demonstration provided by a general user. This research consists of the calibration and testing of two vision systems which are part of a robot-vision system. First, real-time tracking of a human hand is achieved using images acquired from three calibrated synchronized c

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33

Almeida, Vítor Miguel Amorim de. "3D reconstruction through photographs." Master's thesis, 2014. http://hdl.handle.net/10400.13/1057.

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Humans can perceive three dimension, our world is three dimensional and it is becoming increasingly digital too. We have the need to capture and preserve our existence in digital means perhaps due to our own mortality. We have also the need to reproduce objects or create small identical objects to prototype, test or study them. Some objects have been lost through time and are only accessible through old photographs. With robust model generation from photographs we can use one of the biggest human data sets and reproduce real world objects digitally and physically with printers. What is

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Chatterjee, Avishek. "Geometric Calibration and Shape Refinement for 3D Reconstruction." Thesis, 2015. https://etd.iisc.ac.in/handle/2005/4546.

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This thesis is a contribution towards the methods of 3D reconstruction in computer vision. Most of the 3D reconstruction methods are based on either the principle of triangulation or the principle of photometry. In this thesis, we investigate both of these approaches. Although, fundamentals of these principles are well known in computer vision, the recent availability of new hardware and easy access to the community photo collections have made it possible to investigate some of these methods in a newer context. This is because, the existing methods of 3D reconstruction are required to be m

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Taati, BABAK. "Generation and Optimization of Local Shape Descriptors for Point Matching in 3-D Surfaces." Thesis, 2009. http://hdl.handle.net/1974/5107.

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We formulate Local Shape Descriptor selection for model-based object recognition in range data as an optimization problem and offer a platform that facilitates a solution. The goal of object recognition is to identify and localize objects of interest in an image. Recognition is often performed in three phases: point matching, where correspondences are established between points on the 3-D surfaces of the models and the range image; hypothesis generation, where rough alignments are found between the image and the visible models; and pose refinement, where the accuracy of the initial alignments

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