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Dissertations / Theses on the topic 'Three-dimensional geometric images'

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1

Лазаренко, А. Д. "Застосування методу послідовних наближень для визначення перетину тіл обертання з просторовими кривими". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67058.

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У роботі запропоновано принципово новий підхід у розв’язанні позиційних задач нарисної геометрії [3], який заснований на методі послідовних наближень і відрізняється простотою та можливістю простої чисельної реалізації у інженерному програмному забезпеченні. Точність цього методу контролюється на кожному ітераційному кроці геометричних побудов.
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2

McManigle, John E. "Three-dimensional geometric image analysis for interventional electrophysiology." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:2f36fa8e-9c64-4807-97c0-25e63398da7e.

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Improving imaging hardware, computational power, and algorithmic design are driving advances in interventional medical imaging. We lay the groundwork here for more effective use of machine learning and image registration in clinical electrophysiology. To achieve identification of atrial fibrosis using image data, we registered the electroanatomic map (EAM) data of atrial fibrillation (AF) patients undergoing pulmonary vein isolation (PVI) with MR (n = 16) or CT (n = 18) images. The relationship between image features and bipolar voltage was evaluated using single-parameter regression and rando
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Yuen, P. C. "Multi-scale representation and recognition of three dimensional surfaces using geometric invariants." Thesis, University of Surrey, 2001. http://epubs.surrey.ac.uk/979/.

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4

Haxhimusa, Yll. "The structurally optimal dual graph pyramid and its application in image partitioning /." Berlin : Akad. Verl.-Ges. Aka, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2948679&prov=M&dok_var=1&dok_ext=htm.

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Fulton, John R. "Sensor orientation in image sequence analysis /." Connect to thesis, 2007. http://eprints.unimelb.edu.au/archive/00003510.

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VIANA, Mariana Jorge de Andrade. "Reconstrução tridimensional da mama feminina a partir de imagens médicas por infravermelho com auxílio de geometrias substitutas." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17939.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2016-10-04T19:09:24Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) tese mariana viana para BC revisado profa Rita.pdf: 5880006 bytes, checksum: 58b21f8952495e3aba8663b4efa5c48c (MD5)<br>Made available in DSpace on 2016-10-04T19:09:24Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) tese mariana viana para BC revisado profa Rita.pdf: 5880006 bytes, checksum: 58b21f8952495e3aba8663b4efa5c48c (MD5) Previous issue date: 2016-02-12<br
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Séqueira, Jean. "Modélisation interactive d'objets de forme complexe à partir de données hétérogènes : application à la représentation géométrique des organes du corps humain." Besançon, 1987. http://www.theses.fr/1987BESA2028.

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8

Bertin, Etienne. "Diagrammes de Voronoï 2D et 3D : applications en analyse d'images." Grenoble 1, 1994. http://tel.archives-ouvertes.fr/tel-00005078.

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Cette thèse est axée sur la coopération entre l'analyse d'images et la géométrie algorithmique sur la base des diagrammes de Voronoi et de Delaunay. Le propos de l'analyse d'images est la description du contenu d'une image, en vue de son interprétation et d'une prise de décision. La géométrie algorithmique quant à elle consiste à trouver des algorithmes efficaces en vue de résoudre des problèmes a caractère géométrique. Nous nous intéresserons ici au problème de représentation des images par des partitionnements plus ou moins complexes, adaptes ou non au contenu informatif des images. Parmi ce
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Boufama, Boubakeur. "Reconstruction tridimensionnelle en vision par ordinateur : cas des caméras non étalonnées." Grenoble INPG, 1994. http://tel.archives-ouvertes.fr/tel-00005080.

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"la 4e de couverture indique : Cette thèse concerne principalement la reconstruction tridimensionnelle à partir d'images issues de caméras non étalonnées. Deux autres sujets liés à la reconstruction ont été traités: le calcul de la géométrie épipolaire et la mise en correspondance des points dans les images<br>Nous nous plaçons dans le cas général d'une séquence d'images obtenues avec une ou plusieurs caméras inconnues. Quand seuls les points observés dans les images sont utilisés la seule reconstruction possible est de type projective. Nous proposons d'abord une méthode pour calculer la recon
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10

Haumont, Dominique. "Calcul et représentation de l'information de visibilité pour l'exploration interactive de scènes tridimensionnelles." Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210880.

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La synthèse d'images, qui consiste à développer des algorithmes pour générer des images à l'aide d'un ordinateur, est devenue incontournable dans de nombreuses disciplines. <p><p>Les méthodes d'affichage interactives permettent à l'utilisateur d'explorer des environnements virtuels en réalisant l'affichage des images à une cadence suffisamment élevée pour donner une impression de continuité et d'immersion. Malgré les progrès réalisés par le matériel, de nouveaux besoins supplantent toujours les capacités de traitement, et des techniques d'accélération sont nécessaires pour parvenir à maintenir
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11

Lee, Wen-Yuan, and 李文淵. "A Study on the Imagery of Three-Dimensional Colored Geometric Forms." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/25603380467515166376.

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碩士<br>大同工學院<br>工業設計研究所<br>87<br>An object arouses an image in human minds. The image is constructed not just from color or form alone, but from both factors. In fact, it is nature for an industrial designer to consider form and color concurrently when conducting industrial design. This research aims at the study of gradation effects among 3-dimensional geometry (i.e., tetrahedron, cube and sphere) which changes gradually. After that, the 3- dimensional geometric objects were systematically endowed with colored variation to be used as experimental models for investigating their visual sizes. I
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12

"Fusing scattered images with multiresolution point-based model." 2003. http://library.cuhk.edu.hk/record=b5891582.

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Lee Keung Tat.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.<br>Includes bibliographical references (leaves 81-86).<br>Abstracts in English and Chinese.<br>Abstract --- p.i<br>Acknowledgments --- p.iii<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Motivation --- p.1<br>Chapter 1.2 --- Contribution --- p.3<br>Chapter 1.3 --- Previous Work --- p.5<br>Chapter 1.4 --- Thesis Organization --- p.9<br>Chapter 2 --- Overview --- p.10<br>Chapter 3 --- Data Acquisition --- p.14<br>Chapter 3.1 --- Acquiring the Surface Model --- p.14<br>Chapter 3.2 --- Camera Calibratio
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13

"Practical Euclidean reconstruction of buildings." 2001. http://library.cuhk.edu.hk/record=b5890781.

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Chou Yun-Sum, Bailey.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2001.<br>Includes bibliographical references (leaves 89-92).<br>Abstracts in English and Chinese.<br>List of Symbol<br>Chapter Chapter 1 --- Introduction<br>Chapter 1.1 --- The Goal: Euclidean Reconstruction --- p.1<br>Chapter 1.2 --- Historical background --- p.2<br>Chapter 1.3 --- Scope of the thesis --- p.2<br>Chapter 1.4 --- Thesis Outline --- p.3<br>Chapter Chapter 2 --- An introduction to stereo vision and 3D shape reconstruction<br>Chapter 2.1 --- Homogeneous Coordinates --- p.4<br>Chapter 2.2 --- Camera Mo
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14

Mukherjee, Prateep. "Active geometric model : multi-compartment model-based segmentation & registration." Thesis, 2014. http://hdl.handle.net/1805/4908.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>We present a novel, variational and statistical approach for model-based segmentation. Our model generalizes the Chan-Vese model, proposed for concurrent segmentation of multiple objects embedded in the same image domain. We also propose a novel shape descriptor, namely the Multi-Compartment Distance Functions or mcdf. Our proposed framework for segmentation is two-fold: first, several training samples distributed across various classes are registered onto a common frame of reference; then, we use a variational method similar to Acti
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15

"Estimation of 3D wireframe face models from movies." 2003. http://library.cuhk.edu.hk/record=b5891558.

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Tang Yuk Ming = 電影中三維人面模型之估計 / 鄧育明.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.<br>Includes bibliographical references (leaves 107-113).<br>Text in English; abstracts in English and Chinese.<br>Tang Yuk Ming = Dian ying zhong san wei ren mian mo xing zhi gu ji / Deng Yuming.<br>Acknowledgement --- p.i<br>Abstract --- p.ii<br>Contents --- p.vi<br>List of Figures --- p.viii<br>List of Tables --- p.x<br>List of Abbreviations and Notations --- p.xi<br>Chapter 1. --- Introduction --- p.1<br>Chapter 1.1 --- Introduction --- p.1<br>Chapter 1.2 --- Recent Research Works --- p.
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