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Dissertations / Theses on the topic 'Contour'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Bouvier, Christian. "Segmentation région-contour des contours des lèvres." Phd thesis, Grenoble INPG, 2010. http://www.theses.fr/2010INPG0009.

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La thèse présentée a été effectuée en cotutelle entre l'Institut Polytechnique de Grenoble et l'université Laval à Québec. Les travaux ont impliqué les laboratoires universitaire GIPSAlab à Grenoble et le Laboratoire de Vision et Systèmes Numériques de l'Université Laval (LVSN). Notre étude porte sur la segmentation des contours internes et externes des lèvres. L'objectif visé dans notre étude est de proposer un ensemble de méthodes permettant de modéliser précisément la zone de la bouche avec la meilleure robustesse possible. Par robustesse, notre entendons obtenir une méthode fiable qui ne n

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2

Bouvier, Christian. "Segmentation région-contour des contours des lèvres." Phd thesis, Université Laval, 2010. http://tel.archives-ouvertes.fr/tel-00462022.

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La thèse présentée a été effectuée en cotutelle entre l'Institut Polytechnique de Grenoble et l'université Laval à Québec. Les travaux ont impliqué les laboratoires universitaire GIPSAlab à Grenoble et le Laboratoire de Vision et Systèmes Numériques de l'Université Laval (LVSN). Notre étude porte sur la segmentation des contours internes et externes des lèvres. L'objectif visé dans notre étude est de proposer un ensemble de méthodes permettant de modéliser précisément la zone de la bouche avec la meilleure robustesse possible. Par robustesse, notre entendons obtenir une méthode fiable qui ne n

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3

Nordberg, Johan. "Contour." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17074.

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Traditional sketching with pen on paper can be seen as to visualize the memory. Limited to a framework of influences, experiences and ideas the outcome will result in something already known.In searching for knowledge an experimental sketch method counteracts this framework. The aim of this work is to explore morph animation of archetypical garments. Shape interpolation in Adobe Flash software makes it possible to calculate the way between two silhouettes. The result is a third silhouette, a morph of selected garments and depends on where the animation is paused. The work also deals with the g

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4

Wang, Jiankang. "Actively searching contour models for contour extraction." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0014/NQ59691.pdf.

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5

Ananta, Soujanya Siddavaram. "Contour Extraction of Drosophila Embryos Using Active Contours in Scale Space." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1222.

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Contour extraction of Drosophila embryos is an important step to build a computational system for pattern matching of embryonic images which aids in the discovery of genes. Automatic contour extraction of embryos is challenging due to several image variations such as size, shape, orientation and neigh- boring embryos such as touching and non-touching embryos. In this thesis, we introduce a framework for contour extraction based on the connected components in the gaussian scale space of an embryonic image. The active contour model is applied on the images to refine embryo contours. Data cleanin

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6

WANG, XUN. "ON CONSTRAINED CONTOUR ENERGY MINIMIZATION: A NEW APPROACH TO DEFORMABLE CONTOUR METHODS." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1106795223.

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7

劉藹欣 and Oi-yan Elizabeth Lau. "Wrist pulse contour analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B35273525.

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8

Lau, Oi-yan Elizabeth. "Wrist pulse contour analysis." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25085463.

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9

Wang, Xun. "On constrained contour energy minimization." Cincinnati, Ohio : University of Cincinnati, 2004. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1106795223.

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10

Nelson, Christopher. "Contour encoded compression and transmission /." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1613.pdf.

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11

Ferland, Mark B. "Infants' categorization of melodic contour." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74028.

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12

Scheuhammer, Joseph Edward. "Contour completion at edge endings." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/17228.

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13

Lam, Shu Yan. "Advances in active contour algorithms." HKBU Institutional Repository, 2002. http://repository.hkbu.edu.hk/etd_ra/453.

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14

Nelson, Christopher B. "Contour Encoded Compression and Transmission." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/1096.

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As the need for digital libraries, especially genealogical libraries, continues to rise, the need for efficient document image compression is becoming more and more apparent. In addition, because many digital library users access them from dial-up Internet connections, efficient strategies for compression and progressive transmission become essential to facilitate browsing operations. To meet this need, we developed a novel method for representing document images in a parametric form. Like other “hybrid" image compression operations, the Contour Encoded Compression and Transmission (CECAT) sys

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15

Prodöhl, Carsten. "On the recognition of objects by contour parts and the early development of biological contour processing." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=978875621.

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16

Breton, Pierre. "Recovering shape from shading and contour." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28694.

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The classical approach to shape from shading problems is to find a numerical solution of the image irradiance partial differential equation. It is usually assumed that the parameters of this equation (the light source direction and surface albedo) can be estimated in advance. For images which contain shadows and occluding contours, this decoupling of problems is artificial and the classical approach fails. We develop a new approach to solving these equations using the image geometric structures instead of the image photometric structure. Our approach is based on modern differential geometry, a

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17

Thoe, T. B. "Ultrasonic Contour Machining of Ceramic Materials." Thesis, University of Birmingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525493.

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18

Hughes, Alex. "Shape analysis and pose from contour." Thesis, University of York, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428406.

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19

Haida, Maksim, and Максим Володимирович Гайда. "Video surveillance system of target contour." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/50751.

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1. Программирование компьютерного зрения на языке Python / Ян Эрик Солем, пер. с англ. Слинкин А.А. – М.: ДМК Пресс, 2016. – 312.с.: ил. 2. Системи відеоспостереження та методи виділення контурів на зображеннях / K. Гжешчик, Д. Загородня, А. Саченко, Б. Русин – «Управління проектами та розвиток виробництва», 2018, №3(67). 3. Advances in Computer Vision and Pattern Recognition / Giovanni Maria Farinella, Sebastiano Battiato, Roberto Cipolla – Springer-Verlag London 2013. 4. Детекторы углов. URL: https://habr.com/ru/post/244541/ (дата звернення: 23.02.2021).<br>Computer vision is the science

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20

Dowd, Justin Matthew. "Contour and Layers: An Architectural Exploration." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33374.

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The book is a series of plates, pictures and writings which are the results of an architectural thesis exploring, line, contour and layers. The plates are scans of original work by the author, made in a combination of media including: pencil, pastel, watercolor, photograph, study models, hand-drafted drawings, and computer aided drawings. A transcript of the presentation of the work at the thesis defense is included. The simple idea is the impression of contour by the expression of layers. The contour is a line tracing the motion and movement of architecture. Resulting from practice in drawing

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21

Campbell, Andrew S. "Recycled Aggregate & Robotic Contour Crafting." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1554119761226049.

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22

Wong, Yin Yung. "Enhanced snakes algorithm for contour detection." HKBU Institutional Repository, 1997. http://repository.hkbu.edu.hk/etd_ra/144.

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23

TANG, YINGJIE. "ON CLOSE CONTOUR PRESENTATION AND MATCHING PROBLEMS WITH BIOMEDICAL IMAGE APPLICATIONS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin983567833.

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24

August, Jonas. "From contour fragment grouping to shape decomposition." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0006/MQ29580.pdf.

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25

Khayat, Paul. "Attention and eye movements during contour grouping." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2004. http://dare.uva.nl/document/72169.

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26

August, Jonas. "From contour fragment grouping to shape decomposition." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26770.

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Bounding contours of physical objects are often fragmented by other occluding objects. This creates the need for perceptual grouping, or the association of those fragments corresponding to the same object. Perceptual grouping is currently a bottleneck to computer vision, since previous approaches either were heuristic, assumed the object belonged to restricted classes in order to exploit geometric invariants, or hypothesized boundary continuations. I introduce an alternative by invoking the principle that those fragments should be grouped whose fragmentation can be accounted for by a virtual o

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27

Elder, James H. "Contour closure and the perception of shape." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56775.

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By modulating the degree of closure of the outlines, I show that two-dimensional shape processing is rapid for closed stimuli but slow for open stimuli. I further show that search speed can be characterized as a smooth, monotonic function of the degree of closure, supporting the notion of a perceptual closure continuum. This continuum is shown to be naturally parameterized by a dot-spacing metric, and experiments with different types of fragmentation lead to the hypothesis of a Minimax Principle of closure, which imposes a partial ordering over all fragmentations of a given contour. Using sear

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28

Johnson, Gregory. "Residual stress measurements using the contour method." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489521.

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The aim of this dissertation is to explore and evaluate the contour method, a recently developed destructive technique for measuring residual stresses. It is a valuable addition to the suite of tools available to the researcher.

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29

Lee, Chong U. "Contour motion compensation for image sequence coding." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14515.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1989.<br>Includes bibliographical references (leaves 124-130).<br>by Chong Uk Lee.<br>Ph.D.

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30

Metge, Caroline. "Les produits pour le contour de l'oeil." Toulouse 3, 1994. http://www.theses.fr/1994TOU32028.

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31

Anderle, Peter. "Design 3D tiskárny pro technologii Contour Crafting." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400420.

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32

Chu, I.-Hsine (Jack). "CONTOUR GUIDED DISSEMINATION FOR NETWORKED EMBEDDED SYSTEMS." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1159522840.

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33

Duan, Minlan. "Quality of Service in Contour Guided Dissemination." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1184805314.

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34

Mamidisetty, Kranthi Kumar. "Generalizing Contour Guided Dissemination in Mesh Topologies." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1208206994.

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35

Lampert, Thomas. "Spectrogram track detection : an active contour algorithm." Thesis, University of York, 2010. http://etheses.whiterose.ac.uk/956/.

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In many areas of science, near-periodic phenomena represent important information within time-series data. This thesis takes the example of the detection of non-transitory frequency components in passive sonar data, a problem which finds many applications. This problem is typically transformed into the pattern recognition domain by representing the time-series data as a spectrogram, in which slowly varying periodic signals appear as curvilinear tracks. The research is initiated with a survey of the literature, which is focused upon research into the detection of tracks within spectrograms. An

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36

Wang, Qi. "Improved biologically-inspired methods for contour detection." Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/improved-biologicallyinspired-methods-for-contour-detection(05765ae2-698b-4a95-983d-6267666528f7).html.

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Contour detection is the process of finding meaningful smooth curves within an image， such as the boundaries of objects. It is a process at which the biological visual system excels and is also a fundamental technique and crucial step for many applications in computer vision. This thesis is primarily concerned with biologically-inspired approaches to contour detection. In this thesis, some biologically-inspired contour detection algorithms were improved. Such improvement included the better performance obtained from different extended versions of an existing biologically-inspired method, simpl

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37

Wen, Shuangyue. "Automatic Tongue Contour Segmentation using Deep Learning." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38343.

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Ultrasound is one of the primary technologies used for clinical purposes. Ultrasound systems have favorable real-time capabilities, are fast and relatively inexpensive, portable and non-invasive. Recent interest in using ultrasound imaging for tongue motion has various applications in linguistic study, speech therapy as well as in foreign language education, where visual-feedback of tongue motion complements conventional audio feedback. Ultrasound images are known to be difficult to recognize. The anatomical structure in them, the rapidity of tongue movements, also missing segments in some f

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38

Niedfeldt, John Clyde. "RapidSCAT Slice Spatial Response Function Contour Parameterization." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6260.

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The spatial response function (SRF) of the backscatter measurements for a radar scatterometer is often used in reconstruction. It has been found that in many cases the SRF can be approximated as a binary function that is 1 inside the - 6 dB contour of the SRF and 0 outside. This improves the computation speed of reconstruction. Computing the SRF contour can still be a lengthy computation, which can be simplified by precomputing and tabulating key SRF contours. The tabular parameterization for many spinning scatterometers, i.e., QuikSCAT, is straight-forward. For RapidSCAT, this estimation is m

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39

Pötzsch, Michael. "Object contour statistics extracted from natural image sequences." [S.l.] : [s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=959485570.

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40

Zhao, Ping. "A Contour-based Separation of VerticallyAttached Traffic Signs." Thesis, Högskolan Dalarna, Datateknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3033.

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This report presents an algorithm for locating the cut points for and separatingvertically attached traffic signs in Sweden. This algorithm provides severaladvanced digital image processing features: binary image which representsvisual object and its complex rectangle background with number one and zerorespectively, improved cross correlation which shows the similarity of 2Dobjects and filters traffic sign candidates, simplified shape decompositionwhich smoothes contour of visual object iteratively in order to reduce whitenoises, flipping point detection which locates black noises candidates,

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41

Wu, Chung-Yao, and 吳仲堯. "Active Contour Model and Continuation Method Based Contour Model." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/dtdh67.

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碩士<br>大同大學<br>資訊工程學系(所)<br>102<br>Feature extraction methods are used in many applications, including object tracking, object segmentation, face detection and medical image analysis. Most feature extraction algorithms are designed for 2D images, not applicable for 3D models. Active contour model[1] is one such example. Bischoff et al. (2005)[2] proposed 3D active contour model on triangle meshes. However, 3D active contour model has several drawbacks. In this study, we develop a new contouring algorithm based on continuation method. Our algorithm improves the shortcomings of original 3D active

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42

Su, Ke-Han, and 蘇科翰. "Study on Contour Error Control in Parametric Free-Form Contour Following." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/12448263382156670571.

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博士<br>國立成功大學<br>電機工程學系碩博士班<br>96<br>Reducing contour error is an important issue in multi-axis contour following tasks. To reduce contour error, this dissertation presents three different motion control schemes. First, to improve contouring accuracy, a Tangential Contouring Controller (TCC) based motion control scheme was developed. The scheme consists of a position loop controller with velocity command feedforward, a TCC, a real time contour error estimator, and a fuzzy logic based feedrate regulator. The feedrate regulator is designed to reduce contour error based on dynamic machining error

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43

Chiu, Cheng-Li, and 邱正利. "Adaptive Snake Model with Automatic Force Adaptation and Contour Refinement Contour Refinement." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/43409150149162534545.

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碩士<br>國立嘉義大學<br>資訊工程學系研究所<br>94<br>Image segmentation is defined as partitioning an image into non-overlapping regions based on the intensity or texture. The active contour model (Snake model) is one of the preferred approaches for image segmentation because of their computational efficiency and simplicity. But, these methods have some problems is hard to overcome. The first problem is the concave boundary which traditional snake is impossible to capture the concave boundary of interested image region. The second problem is the background texture and noisy of image significantly influence the

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44

Yang, Tzuen-Fu, and 楊尊富. "Multidimensional Contour Control Based on Equivalent Contour Error and Iterative Learning Control." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x3k8e7.

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45

Prince, Jon. "Mental representations of contour." 2005. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=370481&T=F.

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46

Gebert, Mark Allen. "Nonparametric density contour estimation." Thesis, 1998. http://hdl.handle.net/1911/19261.

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Estimation of the level sets for an unknown probability density is done with no specific assumed form for that density, that is, non-parametrically. Methods for tackling this problem are presented. Earlier research showed existence and properties of an estimate based on a kernel density estimate in one dimension. Monte Carlo methods further demonstrated the reasonability of extending this approach to two dimensions. An alternative procedure is now considered that focuses on properties of the contour itself; procedures wherein we define and make use of an objective function based on the charact

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47

Braga, Daniel Filipe Oliveira. "Contour method : procedure optimization." Master's thesis, 2012. http://hdl.handle.net/10216/63286.

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Braga, Daniel Filipe Oliveira. "Contour method : procedure optimization." Dissertação, 2012. http://hdl.handle.net/10216/63286.

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-WEN, CHOU，MAIO, and 周妙文. "The contour of emotions." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/tpm5dj.

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碩士<br>東海大學<br>美術學系<br>107<br>By sorting out my creative forms in the past, I analyze the rigorous way of creation. Under the covered inertia thinking and within the whitewashed oppressive creation, it is customary for me to present the works in a perfect form in the creation. The creative expression of beautiful female appearance implies a deliberate construction of beautiful exterior whitewash, but there is a repression of internal and external contradictions and conflicts. In order to re-create the art works of clay material, I narrate my original family life experience which has never b

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50

Kao, Ping-Wen, and 高秉文. "An Initial Edge Point Selection and Segmental Contour Tracing for Object Contour Extraction." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/87q9d3.

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碩士<br>國立嘉義大學<br>資訊工程學系研究所<br>97<br>Image segmentation is a technique which is used to segment region of interest in the image for further image processing. In general, the accuracy of segmentation result would affect result of further image processing or applications. Contour extraction is one of the most important image segmentation methods. When applying contour extraction to application of industrial inspection or machine vision with low-level processor, we not only consider accuracy but also consider automation and computational complexity. In this study, a contour extraction method is pro

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