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Dissertations / Theses on the topic 'Color extraction'

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1

Luo, Zhenyi. "Color Range Determination and Alpha Matting for Color Images." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20351.

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This thesis proposes a new chroma keying method that can automatically detect background, foreground, and unknown regions. For background color detection, we use K-means clustering in color space to calculate the limited number of clusters of background colors. We use spatial information to clean the background regions and minimize the unknown regions. Our method only needs minimum inputs from user. For unknown regions, we implement the alpha matte based on Wang's robust matting algorithm, which is considered one of the best algorithms in the literature, if not the best. Wang's algorithm is b
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Peng, Timothy M. Eng Massachusetts Institute of Technology. "Narratarium : real-time context-based sound and color extraction from text." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85469.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 69).<br>Narratarium is a system that uses English text or voice input, provided either realtime or off-line, to generate context-specific colors and sound effects. It accomplishes this by employing a variety of machine learning approaches, including commonsense reasoning and natural language processing. It can be highly customized to prioritize different performance metrics, most importantl
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Chavali, Gautam Krishna, Sai Kumar N. V. Bhavaraju, Tushal Adusumilli, and VenuGopal Puripanda. "Micro-Expression Extraction For Lie Detection Using Eulerian Video (Motion and Color) Magnication." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3467.

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Lie-detection has been an evergreen and evolving subject. Polygraph techniques have been the most popular and successful technique till date. The main drawback of the polygraph is that good results cannot be attained without maintaining a physical contact, of the subject under test. In general, this physical contact would induce extra consciousness in the subject. Also, any sort of arousal in the subject triggers false positives while performing the traditional polygraph based tests. With all these drawbacks in the polygraph, also, due to rapid developments in the fields of computer vision and
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Gopinath, Sudhir. "Using Color and Shape Analysis for Boundary Line Extraction in Autonomous Vehicle Applications." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35015.

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Autonomous vehicles are the subject of intense research because they are a safe and convenient alternative to present-day vehicles. Human drivers base their navigational decisions primarily on visual information and researchers have been attempting to use computers to do the same. The current challenge in using computer vision lies not in the collection or transmission of visual data, but in the perception of visual data to extract from it useful information. The focus of this thesis is on the use of computer vision to navigate an autonomous vehicle that will participate in the Intelligen
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Zhang, Yu. "Segmentation Based Depth Extraction for Stereo Image and Video Sequence." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23207.

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3D representation nowadays has attracted much more public attention than ever before. One of the most important techniques in this field is depth extraction. In this thesis, we first introduce a well-known stereo matching method using color segmentation and belief propagation, and make an implementation of this framework. The color-segmentation based stereo matching method performs well recently, since this method can keep the object boundaries accurate, which is very important to depth map. Based on the implemented framework of segmentation based stereo matching, we proposed a color segmentat
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TOLEDO, ANTONIO C. T. de. "Estudo de tratamento químico de urina para redução no consumo de água em descargas residenciais." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10614.

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Made available in DSpace on 2014-10-09T12:42:28Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:08Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Smith, Leanna Marie. "Fast Corn Grading System Verification and Modification." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/795.

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A fast corn grading system can replace the traditional method in unofficial corn grading locations. The initial design of the system proved that it can classify corn kernels with a high success rate. This study tested the robustness of the system against samples from different locations with different moisture contents. The experimental results were compared with the official grading results for 3 out of the 6 samples. This study also tested the limitations of the segmentation algorithm. The results showed that 60 to 70 kernels in a 100 cm2 could be correctly segmented in a relatively short ru
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Abdulrahman, Hasan. "Oriented filters for feature extraction in digital Images : Application to corners detection, Contours evaluation and color Steganalysis." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS077/document.

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L’interprétation du contenu de l’image est un objectif très important dans le traitement de l’image et la vision par ordinateur. Par conséquent, plusieurs chercheurs y sont intéressés. Une image contient des informations multiples qui peuvent être étudiés, telles que la couleur, les formes, les arêtes, les angles, la taille et l’orientation. En outre, les contours contiennent les structures les plus importantes de l’image. Afin d’extraire les caractéristiques du contour d’un objet, nous devons détecter les bords de cet objet. La détection de bords est un point clé dans plusieurs applications,
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Lao, Fei. "Purple Corn (Zea mays L.) Cob Anthocyanins: Extraction, Quantification, Spray Drying and Complexation with Proteins." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469116741.

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10

Geary, Kevin Thomas. "Color Feature Integration with Directional Ringlet Intensity Feature Transform for Enhanced Object Tracking." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1479835464285204.

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11

Bouyanzer, Hassane. "Extraction automatique de caractéristiques sur des images couleurs : application à la mesure de paramètres." Rouen, 1992. http://www.theses.fr/1992ROUES059.

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Dans cet ouvrage, nous avons mis en œuvre des méthodes de segmentation des images monochromes puis trichromes. L'emploi de la couleur en segmentation est un sujet de recherche récent, qui suscite un grand intérêt. L'application développée dans ce mémoire concerne l'automatisation de la procédure de calcul de paramètres sur des montures de lunettes. L'originalité du travail consiste en l'introduction de deux algorithmes de classification probabiliste EM et SEM
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Irmak, Hasan. "Real Time Traffic Sign Recognition System On Fpga." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612360/index.pdf.

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In this thesis, a new algorithm is proposed for the recognition of triangular, circular and rectangular traffic signs and it is implemented on an FPGA platform. The system can recognize 32 different traffic signs with high recognition accuracy. In the proposed method, first the image is segmented into red and blue regions, and according to the area of the each segment, the dominant color is decided. Then, Laplacian of Gaussian (LoG) based edge detection is applied to the segmented image which is followed by Hough Transform for shape extraction. Then, recognition based on Informative Pixel Per
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FARIAS, Renan Dozzo. "Espaço de cores, morfologia matemática e extração de feições." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/20338.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-08-08T13:18:51Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO DO MESTRADO - RENAN.pdf: 2412478 bytes, checksum: 4cfaf4abac06be681bb16b4db23db3a2 (MD5)<br>Made available in DSpace on 2017-08-08T13:18:51Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO DO MESTRADO - RENAN.pdf: 2412478 bytes, checksum: 4cfaf4abac06be681bb16b4db23db3a2 (MD5) Previous issue date: 2016-08-29<br>A busca de métodos qu
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SILVA, Roberto Higino Pereira da. "Algoritmo para extração de imagens de fundo não homogêneos usando o espaço de cores YCbCr." Universidade Federal de Campina Grande, 2006. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1511.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-20T20:47:40Z No. of bitstreams: 1 ROBERTO HIGINO PEREIRA DA SILVA - DISSERTAÇÃO PPGEE 2006..pdf: 1429650 bytes, checksum: 8995a1f77f3e3471161b540826a56f6e (MD5)<br>Made available in DSpace on 2018-08-20T20:47:40Z (GMT). No. of bitstreams: 1 ROBERTO HIGINO PEREIRA DA SILVA - DISSERTAÇÃO PPGEE 2006..pdf: 1429650 bytes, checksum: 8995a1f77f3e3471161b540826a56f6e (MD5) Previous issue date: 2006-05-29<br>A extração de objetos em uma imagem tem várias aplicações na área da automação, tais como: reconhecimento de padrões em
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15

Ara?jo, Beth Aluana Tavares de. "Utiliza??o de microemuls?o na remo??o da cor de efluentes t?xteis contendo corantes dispersos." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17633.

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Made available in DSpace on 2014-12-17T15:41:51Z (GMT). No. of bitstreams: 1 BethATA_DISSERT.pdf: 4261945 bytes, checksum: f9ef7f539e59502be1e168b17a14bf4a (MD5) Previous issue date: 2009-07-17<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Polyester fibers are the most used fibers in the world and disperse dyes are used for dyeing these fibers. After dyeing, the colorful dyebath is discharged into effluent streams, which needs a special treatment for color removal. Surfactants interaction with dyes has been evaluated in several studies, including the textile area, specifi
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Leung, Kam Shek Simon. "Image processing by region extraction using a clustering approach based on colour." Thesis, University of Stirling, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281109.

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Láník, Aleš. "Detekce výrobků na pásovém dopravníku." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235894.

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In this master thesis, object's detection in image and tracking these objects in temporal area will be presented. First, theoretical background of the image's preprocessing, image filtration, the foreground extraction, and many others various image's features will be described. Next, design and implementation of detector will be processed. This part of my master thesis containes mainly information about detection of objects on belt conveyer Finally,results, conclusion and many supplementary data such as a photography camera's location will be shown.
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Janick, Christophe. "Détection de passage sur fond structure coloré : mise en coopération des informations multispectrales." Paris 6, 2000. http://www.theses.fr/2000PA066228.

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19

Driscoll, Michael T. "A machine vision system for capture and interpretation of an orchestra conductor's gestures." Link to electronic version, 1999. http://www.wpi.edu/Pubs/ETD/Available/etd-051199-142455/unrestricted/thesis.pdf.

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Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: color thresholding; video for Windows; center of mass calculation; contour extraction; area calculation; virtual orchestra; Broadway. Includes bibliographical references (leaves 62-63).
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Ben, Rahal Neïla. "Extraction, identification et caractérisation des molécules bioactives de la graine et de l'huile de Silybum marianum. Étude de leurs activités antioxydante et antitumorale." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0137/document.

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L'extraction par CO2 supercritique démontre les avantages d'un procédé de chimie verte en comparant ce procédé à la méthode d'extraction par solvant organiques et en tenant compte du degré de toxicité et de pollution du solvant. L'extraction par solvants organiques met en évidence l'influence du solvant d'extraction alors que l'extraction par CO2-SC met en évidence l'influence de différents paramètres dont la pression, la température, le temps de contact entre la matrice végétale et le CO2-SC, le diamètre moyen des particules et l'ajout d'un co-solvant. L'analyse chromatographique a permis d'i
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Janse, Van Vuuren Michaella. "Human Pose and Action Recognition using Negative Space Analysis." Diss., University of Cape Town, 2004. http://hdl.handle.net/10919/71571.

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This thesis proposes a novel approach to extracting pose information from image sequences. Current state of the art techniques focus exclusively on the image space occupied by the body for pose and action recognition. The method proposed here, however, focuses on the negative spaces: the areas surrounding the individual. This has resulted in the colour-coded negative space approach, an image preprocessing step that circumvents the need for complicated model fitting or template matching methods. The approach can be described as follows: negative spaces surrounding the human silhouette are extra
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Raveaux, Romain. "Fouille de graphes et classification de graphes : application à l’analyse de plans cadastraux." Thesis, La Rochelle, 2010. http://www.theses.fr/2010LAROS311/document.

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Les travaux présentés dans ce mémoire de thèse abordent sous différents angles très intéressants, un sujet vaste et ambitieux : l’interprétation de plans cadastraux couleurs.Dans ce contexte, notre approche se trouve à la confluence de différentes thématiques de recherche telles que le traitement du signal et des images, la reconnaissance de formes, l’intelligence artificielle et l’ingénierie des connaissances. En effet, si ces domaines scientifiques diffèrent dans leurs fondements, ils sont complémentaires et leurs apports respectifs sont indispensables pour la conception d’un système d’inter
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Santos, Dalí Freire Dias dos. "Recuperação de imagens: similaridade parcial baseada em espectro de grafo e cor." Universidade Federal de Uberlândia, 2012. https://repositorio.ufu.br/handle/123456789/12531.

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Traditionally, local shape descriptors or color and texture based descriptors are used to describe the content of images. Although, these solutions achieving good results, they are not able to distinguish scenes that contain objects with the same colors, but with a different spatial organization or do not supports partial matching. In this work we focus on a particular case of the partial matching that is to find individual objects in images that contain various objects. Since the color is one of the most visually distinguishable properties, we propose a new descriptor based only on color able
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Herrera, Calderón Oscar. "Efecto anticancerígeno del extracto de hojas de Dodonaea viscosa Jacq en el cáncer colorrectal y citotóxico en células tumorales HT-29." Doctoral thesis, Universidad Nacional Mayor de San Marcos, 2021. https://hdl.handle.net/20.500.12672/16549.

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Las hojas de Dodonaea viscosa Jacq presenta propiedades antinflamatorias, información etnofarmacológica, el cual fue obtenida en la provincia de Aymaraes, departamento de Apurimac, Perú. La presente investigación evalúa el efecto anticancerígeno del extracto hidroalcohólico de hojas de Dodonaea viscosa Jacq en el cáncer colorrectal y el efecto citotóxico en células tumorales HT-29. El material vegetal fue colectado en el distrito de Chalhuanca, provincia de Aymaraes, departamento de Apurimac a 2.888 m.s.n.m. Las hojas fueron seleccionadas y se procedieron a la maceración con alcohol al
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Al-Nu'aimi, Abdallah S. N. A. "Design, Implementation and Performance Evaluation of Robust and Secure Watermarking Techniques for Digital Coloured Images. Designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the
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Al-Nu'aimi, Abdallah Saleem Na. "Design, implementation and performance evaluation of robust and secure watermarking techniques for digital coloured images : designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the ar
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Mohammed, Abdulmalik. "Obstacle detection and emergency exit sign recognition for autonomous navigation using camera phone." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/obstacle-detection-and-emergency-exit-sign-recognition-for-autonomous-navigation-using-camera-phone(e0224d89-e743-47a4-8c68-52f718457098).html.

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In this research work, we develop an obstacle detection and emergency exit sign recognition system on a mobile phone by extending the feature from accelerated segment test detector with Harris corner filter. The first step often required for many vision based applications is the detection of objects of interest in an image. Hence, in this research work, we introduce emergency exit sign detection method using colour histogram. The hue and saturation component of an HSV colour model are processed into features to build a 2D colour histogram. We backproject a 2D colour histogram to detect emergen
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Tsai, Yu-Hui, and 蔡玉慧. "Features Extraction from Color Information." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/22072139878067129906.

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碩士<br>國立成功大學<br>測量工程學系<br>86<br>In recent years,automatic extraction of Man-Made Objects(MMO) has become an important topic in the field of Digital Photogrammetry. Since,geometrically,MMOs in images could be consider as assembled from corners,edges,and roof surfaces,feature extraction which extract points, lines and regions as image features play the basic role in the extraction of MMOs.The basic procedures used in the most MMO extraction are:extraction of linear featu
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Chen, Chien-Wen, and 陳建文. "Edges Extraction of Color Image." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/cdm957.

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碩士<br>國立成功大學<br>測量工程學系碩博士班<br>90<br>Recently ,due to the popularity and progress of the computer technology, data access become digitized and automatic. Besides, in order to spatial information 3 dimensionally, map data is also in digital form instead of traditional paper-printed map. In order to provide 3D spatial information photogrammetrically, the automatic reconstruction of urban 3D city model is a very important research.   The successfulness of reconstruction of 3D city model depends largely on complete extraction of edge information in imgaes. In urban aerial images with known which o
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Zou, Zhi Xian, and 鄒志賢. "Color feature extraction and its applications." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/69560451776489735477.

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Jhu, Jyong-An, and 朱炯諳. "Efficient Skin-Color Extraction through Color Model Analysis for Real-Time Applications." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/fwkh2f.

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碩士<br>國立東華大學<br>電機工程學系<br>95<br>An efficient skin-color extraction algorithm is proposed to detect skin-color region in color images with complex background. We detect skin-color regions by using the skin-color model in the YCbCr color space and the skin-color model is constructed via skin pixels of the images adopted from both AR database and some image samples collected from internet. The skin-color model is composed of two intersecting quadratic functions. A pixel is labeled as skin-candidate if it falls within the defined region. Detected regions are then refined by the variance of the RGB
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Chen, Chun-Sheng, and 陳俊升. "CIELAB Color Space Based Background Modeling for Low Color Contrast Foreground Extraction." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/45932291041872150579.

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碩士<br>國立交通大學<br>電機與控制工程系所<br>96<br>Background subtraction is a typical method used to extract foreground object in video streams taken from a static camera. When the foreground color is different from the background color, the foreground subject can be extracted easily by the luminance component. When the foreground color is similar to the background color, we cannot extract the foreground image completely by the luminance component. To solve this, we used to utilize the HSV color space to build the background model to do color compensation, in line with similar spirit of W4 segmentation algor
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Shu-Shu, Chiu. "Framework Extraction for a Color Human Body Image." 2000. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0009-0112200611314951.

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Chen, Mei-Fen, and 陳梅芬. "The Extraction of Characters on Dated Color Postcards." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/02708156348565075519.

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碩士<br>淡江大學<br>資訊工程學系<br>91<br>In this study, we propose a scheme to extract characters from color postcards published around 1930 during the time Japan occupied Taiwan as one of its colonies. These postcards, reproduced in the book “台灣紀行” [1], possibly the earliest postcards in Taiwan, contained photographs of beautiful mountains, rivers, farms, country view, famous buildings…etc of earlier Taiwan. As they are precious but fragile historical documents, it is very meaningful if these postcards can be kept in a digital library via key words searching engine, with helps of characters extraction,
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Chiu, Shu-Shu, and 邱淑姝. "Framework Extraction for a Color Human Body Image." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/46618818340738219646.

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碩士<br>元智大學<br>電機工程研究所<br>88<br>Extracting human body framework in images is up to now an open and significant problem in general. We propose a systematic approach in which strictly follows the fundamental assumption: only one front-viewed standing human body dressing clothes with long sleeves and long trousers can be extracted from an image in this thesis. To effectively extract the human body framework, the main parts and their relationships considered in a human body are defined first from the viewpoint of anatomy. Three main steps devised in our approach to extract the human body framewo
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Hsu, Wei-Chen, and 徐偉城. "Building Extraction from Color Aeial Stereo Photo Pairs." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/88690273106499046077.

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碩士<br>國立中央大學<br>土木工程研究所<br>87<br>Three dimensional geographic data is getting important. For those applications such as 3-D city model, landscape visualization, selection of base station for telecommunication, the topographic data is indispensable. Photogrammetric mapping technology is still the major approach for 3-D topographic mapping. The technology has evolved from analogue to analytical one and now toward automation. In the automation, aerial triangulation has been successful and in operation. On the other hand, the automated determination for ground object is still in the early stage. R
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Liang, Chun-Wei, and 梁峻偉. "Color Feature Extraction and Description for Image Retrieval." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/x2n352.

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碩士<br>國立高雄應用科技大學<br>資訊工程系<br>104<br>One of the difficulties in searching natural images is the semantic gap between low-level pixel data and the content that is perceived by human. We observed that when viewing images, human perception often focuses on the major color regions and ignores small, isolated sectors. Thus, instead of considering all pixels in the images, which is usually inefficient and prone to noise, we examined and utilized color features after image segmentation. First, Gaussian smoothing was applied to images which was then followed by object-based segmentation. Clusters which
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Chou, Sheng-Ting, and 周昇廷. "Interactive Object Extraction Based on Spatio-temporal Color Coherence." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/44205083086998865687.

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碩士<br>國立中正大學<br>資訊工程所<br>96<br>We propose an integrated tracking system for applications which need more precise segmentation of target. The main tracking mechanism is accomplished by two trackers. The first tracker performs tracking by Adaboost on pixel-wise seed features; it can provide more detailed segmentation of target and combines with mean shift algorithm to track target in next frame. The second tracker achieves tracking by backward region tracking and uses temporal coherence to provide compensations to the short the first tracker. By confidence measure, the two trackers combine toget
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Yu-Shan, Wai. "Improvement on Color Image Segmentation Algorithm and Interactive Object Extraction." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1707200617081000.

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Wai, Yu-Shan, and 魏郁珊. "Improvement on Color Image Segmentation Algorithm and Interactive Object Extraction." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/29188903221676888562.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>94<br>The automatic recognition of images has been a researched topic over decades yet still a difficult task to accomplish. Similar as the process of human perception, the first step of automatic recognition should be image segmentation to segment different homogeneous patches into regions. However, like the automatic recognition, segmentation remains a yet satisfactorily solved problem. This is due to the uncertainty and complexity nature of images. By the aid of various image processing techniques and pattern recognition analysis, this problem may reduced to some
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Juan, Cheng-kang, and 阮正康. "A Study of Color Feature Extraction for Image Database Retrival." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/78582060955641802733.

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碩士<br>銘傳大學<br>資訊管理學系碩士在職專班<br>91<br>In this study, two new methods of color indexing are proposed. First, a new color-spatial indexing is presented. A mean-cut algorithm is applied for constructing the image’s color structure based on variances of color planes candidate images are selected based on similar color structure. The uniform quantization technique is also applied for reducing color number by quantizing the gray scale value of each color plane from 256 to 8. Therefore, 3 8 color values of statistics histogram are computed for color features. Then, similar images are return to user acc
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ming, Chang jeng, and 張仁明. "Segmentation and Feature Extraction of Color Seedling Images under Natural Lighting." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/94347527219569977726.

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碩士<br>國立臺灣大學<br>農業機械工程學系研究所<br>87<br>The measurement of plant growth is helpful in understanding the interaction between plant growth and environmental factors. Therefore, we developed an intelligent machine vision system to determine seedling morphological characteristics non-destructively in this research. The image segmentation of seedling from background natural lighting was discussed and an operating algorithms to measure seedling morphological characteristics was developed. Preliminary information was obtained from the top view image and side view images of the seedling. Seedling charact
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Huang, Yun-Chieh, and 黃韻潔. "Improving White LED Color Spatial Uniformity on Scattered Photon Extraction Technology." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/03912431832565276839.

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碩士<br>國立臺灣科技大學<br>色彩與照明科技研究所<br>102<br>The concept of Scattered Photon Extraction remote phosphor is proven to be one of the effective solutions for improving Light Extraction Efficiency of white LEDs, and it provides the omni-direction light distribution for lamp design from Narendran in 2005. Not only the Light Extraction Efficiency is important, but also the spatial CCT uniformity is a critical index in the evaluation of high-quality white LEDs. However, an non-optimized white LED light source will induce the increase of spatial CCT deviation and induce the quality of lighting, therefore th
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Wu, Zhi-Ren, and 鄔誌仁. "A Real-time Face Extraction System based on a Skin Color Detector." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/04615441382657550509.

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碩士<br>國立臺灣師範大學<br>機電科技研究所<br>95<br>Human face detection plays an important role in applications such as face recognition, human computer interface, and video surveillance. In this paper, we proposed a skin color detector for lighting compensation. Because skin color always suffers from illumination, lighting compensation method is used to improve the skin color detection. First, we use lighting compensation algorithm for lighting calibration and perform skin segmentation using thresholds of Cb and Cr by training. Second, in training phase, we utilize principle axis k-means algorithm to cluster
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Wu, Tsai-Fong, and 吳彩鳳. "Moving Object Extraction in DCT compressed Videoand Skin Color Classification of Human Races." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/43712278373515037287.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>94<br>Research of image segmentation has been studied for many years. Image segmentation techniques are important but difficult in many image processing topics, such as object recognition and content-based image retrieval. In order to solve those problems, a successful image segmentation method is essential for splitting an image into meaningful regions, such as the discrimination between foreground and background of the segmentation of moving object and constant background. Then, make again these fundamental units (such as pixels or blocks) into further significant
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Lin, Wen-Ting. "Systematic data preprocess procedures and factor extraction of multiple phenotypes for one-color microarray." 2004. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1607200415331300.

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Tsai-Fong, Wu. "Moving Object Extraction in DCT compressed Video and Skin Color Classification of Human Races." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1707200615541000.

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萬瓊月. "Extraction of Color and Appearance—The Creation Idea and Form of Chiung-Yueh Wan." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/yj69d5.

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碩士<br>東海大學<br>美術學系<br>104<br>While some people certainly would dispute that innovation also exists in imitation, during the process of painting, however, regardless of the percentage of innovative novelty, what the author explicitly would like do is to express in another possible way different from visual presentation as representational paintings created formerly in order to be released from shackles because of being discontented with imitation of figurative paintings. With this strong impulse, the elegant colored rectangles were found as the best medium to show the power and beauty of concis
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Lin, Wen-Ting, and 林雯婷. "Systematic data preprocess procedures and factor extraction of multiple phenotypes for one-color microarray." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/22547434483964753647.

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碩士<br>國立臺灣大學<br>工業工程學研究所<br>92<br>Microarrays are widely used to monitor gene expressions to yield information for genomes. Though there are many methods and mechanisms proposed to extract information from microarray data, the preprocess of raw expression data determine the accuracy and reliability of the extracted information. The first objective of this research is to implement a systematic procedure to preprocess the raw intensity reading. The proposed data preprocess procedure has 3 steps: rectification of intensity reading, signal normalization and bad spots screening. The rectification o
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Tsai, Chun-Ming, and 蔡俊明. "A Study on Background Determination and Object Extraction and Classification for Color Document Analysis." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/44851740820063385101.

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博士<br>國立交通大學<br>資訊工程系<br>90<br>In this dissertation, we propose methods to solve the following problems in an automatic color document processing system. First, to recognize the characters, the recognition engines are usually trained from character samples, which are extracted from images. Second, it is time consuming to extract characters from color document images. Last, some of the images and captions are printed in skew for layout designing. The methods to explore these problems in this dissertation include binarization by determining background colors, object extraction and skew object se
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