Download or read book CONTRIBUTION A L ANALYSE ET A LA COMPRESSION DE L INFORMATION DANS L IMAGE written by Jean-Louis de Bougrenet de la Tocnaye and published by . This book was released on 1981 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: COMPRESSION DE L'INFORMATION DANS L'IMAGE. REPRESENTATION ET DIMENSIONS DES SIGNAUX IMAGES. BASE DES FONCTIONS SPHEROIDALES APLATIES. ANALYSE DE L'IMAGE EN VUE D'UN CODAGE ADAPTE. REALISATION D'UN DISPOSITIF DE CODAGE ADAPTE A L'IMAGE

Download or read book Contribution aux techniques de compression d image written by Marc Hohenadel and published by . This book was released on 1994 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'introduction massive de l'image numérique dans la seconde partie de ce siècle conduit à manipuler des masses d'informations de plus en plus importantes. Les méthodes de compression d'image sont une solution pour éliminer l'information non pertinente et ainsi réduire la masse d'informations numériques d'une image. Parmi les nombreuses méthodes de compression d'image, les méthodes utilisant les outils mathématiques de l'analyse par ondelettes sont très prometteuses. Ce mémoire présente une nouvelle méthode de compression d'image de dernière génération utilisant deux outils de l'analyse par ondelettes : la décomposition en sous-bandes et la transformée en ondelettes. Après avoir détaillé cette nouvelle méthode de compression, l'ensemble des outils mathématiques utiles à la compréhension de son principe sera explicite en détail. Entre autre, seront explicitées du point de vue mathématique, les transformées orthogonales comme Fourier, Hadamard, Walsh,... la transformée en ondelettes de Haar, et les décompositions en sous-bandes. Une implémentation informatique de chacun des outils présentés sera aussi proposée. Pour finir, nous comparerons les résultats de la nouvelle méthode de compression à la norme de compression JPEG

Download or read book Sur une approche de l analyse en composantes ind pendantes la compression des images multi composantes written by Isidore Paul Akam Bita and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans une première partie, nous définissons plusieurs schémas de compression en partant de l'état de l'art qu'est JPEG 2000 aujourd'hui. Les schémas de compressions que nous avons définis proposent d'utiliser une transformation pour la réduction de la redondance spatiale transformée en ondelette discrète (TOD) et une autre transformation pour réduire la redondance spectrale. Les transformations optimales sous les hypothèses faible distortion, permettant de réduire la redondance spectrale, s'obtiennent dans certains cas en minimisant un critère qui peut être interpréte comme le critère de l'analyse en composantes indépendantes (ACI) (minimisation de l'information mutuelle) additionné d'un terme toujours positif ou nul qui est une certaine mesure à l'orthogonalité de la transformation obtenue. Les performances obtenues en intégrant ces transformations dans nos schémas de compression montrent une amélioration des performances en comparaison à la transformation de Karhunen Loève (TKL). Dans la deuxième partie, nous proposons un modèle de mélange convolutif pour rechercher une transformation unique réduisant à la fois les redondances spatiales et spectrales. Nous définissons le critère à minimiser sous les hypothèses faibles distortions et nous montrons que ce critère peut s'interprété comme celui de l'ACI pour la séparation et déconvolution lorsque le critère à minimiser est l'information mutuelle auquel s'additionne un terme toujours positif ou nul. Puis nous proposons deux algorithmes permettant d'obtenir d'une part la transformation minimisant le critère dans le cas général, et d'autre part celle qui minimise le critère sous la contrainte que la distorsion dans le domaine transformée est la même que celle du domaine de l'image.

Download or read book Algorithms for Image Processing and Computer Vision written by J. R. Parker and published by John Wiley & Sons. This book was released on 2010-11-29 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cookbook of algorithms for common image processing applications Thanks to advances in computer hardware and software, algorithms have been developed that support sophisticated image processing without requiring an extensive background in mathematics. This bestselling book has been fully updated with the newest of these, including 2D vision methods in content-based searches and the use of graphics cards as image processing computational aids. It’s an ideal reference for software engineers and developers, advanced programmers, graphics programmers, scientists, and other specialists who require highly specialized image processing. Algorithms now exist for a wide variety of sophisticated image processing applications required by software engineers and developers, advanced programmers, graphics programmers, scientists, and related specialists This bestselling book has been completely updated to include the latest algorithms, including 2D vision methods in content-based searches, details on modern classifier methods, and graphics cards used as image processing computational aids Saves hours of mathematical calculating by using distributed processing and GPU programming, and gives non-mathematicians the shortcuts needed to program relatively sophisticated applications. Algorithms for Image Processing and Computer Vision, 2nd Edition provides the tools to speed development of image processing applications.

Download or read book Sensors Signal and Image Processing in Biomedicine and Assisted Living written by Dimitris K. Iakovidis and published by MDPI. This book was released on 2020-11-04 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a collection of recent advances on sensors, systems, and signal/image processing methods for biomedicine and assisted living. It includes methods for heart, sleep, and vital sign measurement; human motion-related signal analysis; assistive systems; and image- and video-based diagnostic systems. It provides an overview of the state-of-the-art challenges in the respective topics and future directions. This will be useful for researchers in various domains, including computer science, electrical engineering, biomedicine, and healthcare researchers.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1979 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to Information Retrieval written by Christopher D. Manning and published by Cambridge University Press. This book was released on 2008-07-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date treatment of all aspects of the design and implementation of systems for gathering, indexing, and searching documents; methods for evaluating systems; and an introduction to the use of machine learning methods on text collections. All the important ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students in computer science. Based on feedback from extensive classroom experience, the book has been carefully structured in order to make teaching more natural and effective. Slides and additional exercises (with solutions for lecturers) are also available through the book's supporting website to help course instructors prepare their lectures.

Download or read book Progress in Pattern Recognition Image Analysis Computer Vision and Applications written by Eduardo Bayro Corrochano and published by Springer Science & Business Media. This book was released on 2009-10-26 with total page 1082 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 14th Iberoamerican Congress on Pattern Recognition, CIARP 2009, held in Guadalajara, Mexico, in November 2009. The 64 revised full papers presented together with 44 posters were carefully reviewed and selected from 187 submissions. The papers are organized in topical sections on image coding, processing and analysis; segmentation, analysis of shape and texture; geometric image processing and analysis; analysis of signal, speech and language; document processing and recognition; feature extraction, clustering and classification; statistical pattern recognition; neural networks for pattern recognition; computer vision; video segmentation and tracking; robot vision; intelligent remote sensing, imagery research and discovery techniques; intelligent computing for remote sensing imagery; as well as intelligent fusion and classification techniques.

Download or read book Medical Image Analysis written by Alejandro Frangi and published by Academic Press. This book was released on 2023-09-20 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical Image Analysis presents practical knowledge on medical image computing and analysis as written by top educators and experts. This text is a modern, practical, self-contained reference that conveys a mix of fundamental methodological concepts within different medical domains. Sections cover core representations and properties of digital images and image enhancement techniques, advanced image computing methods (including segmentation, registration, motion and shape analysis), machine learning, how medical image computing (MIC) is used in clinical and medical research, and how to identify alternative strategies and employ software tools to solve typical problems in MIC. - An authoritative presentation of key concepts and methods from experts in the field - Sections clearly explaining key methodological principles within relevant medical applications - Self-contained chapters enable the text to be used on courses with differing structures - A representative selection of modern topics and techniques in medical image computing - Focus on medical image computing as an enabling technology to tackle unmet clinical needs - Presentation of traditional and machine learning approaches to medical image computing

Download or read book Compressed Image File Formats written by John Miano and published by Addison-Wesley Professional. This book was released on 1999 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since not all graphic formats are of equal complexity, author John Miano does not simply choose a number of file formats and devote a chapter to each one. Instead, he offers additional coverage for the more complex image file formats like PNG (a new standard) and JPEG, while providing all information necessary to use the simpler file formats. While including the well-documented BMP, XBM, and GIF formats for completeness, along with some of their less-covered features, this book gives the most space to the more intricate PNG and JPEG, from basic concepts to creating and reading actual files. Among its highlights, this book covers: -- JPEG Huffman coding, including decoding sequential mode JPEG images and creating sequential JPEG files-- Optimizing the DCT-- Portable Network Graphics format (PNG), including decompressing PNG image data and creating PNG files-- Windows BMP, XBM, and GIF

Download or read book Image Correlation for Shape Motion and Deformation Measurements written by Michael A. Sutton and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Image Correlation for Shape, Motion and Deformation Measurements provides a comprehensive overview of data extraction through image analysis. Readers will find and in-depth look into various single- and multi-camera models (2D-DIC and 3D-DIC), two- and three-dimensional computer vision, and volumetric digital image correlation (VDIC). Fundamentals of accurate image matching are described, along with presentations of both new methods for quantitative error estimates in correlation-based motion measurements, and the effect of out-of-plane motion on 2D measurements. Thorough appendices offer descriptions of continuum mechanics formulations, methods for local surface strain estimation and non-linear optimization, as well as terminology in statistics and probability. With equal treatment of computer vision fundamentals and techniques for practical applications, this volume is both a reference for academic and industry-based researchers and engineers, as well as a valuable companion text for appropriate vision-based educational offerings.

Download or read book Information Theory Tools for Image Processing written by Miquel Feixas and published by Morgan & Claypool Publishers. This book was released on 2014-03-01 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information Theory (IT) tools, widely used in many scientific fields such as engineering, physics, genetics, neuroscience, and many others, are also useful transversal tools in image processing. In this book, we present the basic concepts of IT and how they have been used in the image processing areas of registration, segmentation, video processing, and computational aesthetics. Some of the approaches presented, such as the application of mutual information to registration, are the state of the art in the field. All techniques presented in this book have been previously published in peer-reviewed conference proceedings or international journals. We have stressed here their common aspects, and presented them in an unified way, so to make clear to the reader which problems IT tools can help to solve, which specific tools to use, and how to apply them. The IT basics are presented so as to be self-contained in the book. The intended audiences are students and practitioners of image processing and related areas such as computer graphics and visualization. In addition, students and practitioners of IT will be interested in knowing about these applications.

Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.

Download or read book Recent Advances in Multimedia Signal Processing and Communications written by Mislav Grgic and published by Springer. This book was released on 2009-09-30 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid increase in computing power and communication speed, coupled with computer storage facilities availability, has led to a new age of multimedia app- cations. Multimedia is practically everywhere and all around us we can feel its presence in almost all applications ranging from online video databases, IPTV, - teractive multimedia and more recently in multimedia based social interaction. These new growing applications require high-quality data storage, easy access to multimedia content and reliable delivery. Moving ever closer to commercial - ployment also aroused a higher awareness of security and intellectual property management issues. All the aforementioned requirements resulted in higher demands on various - eas of research (signal processing, image/video processing and analysis, com- nication protocols, content search, watermarking, etc.). This book covers the most prominent research issues in multimedia and is divided into four main sections: i) content based retrieval, ii) storage and remote access, iii) watermarking and co- right protection and iv) multimedia applications. Chapter 1 of the first section presents an analysis on how color is used and why is it crucial in nowadays multimedia applications. In chapter 2 the authors give an overview of the advances in video abstraction for fast content browsing, transm- sion, retrieval and skimming in large video databases and chapter 3 extends the discussion on video summarization even further. Content retrieval problem is tackled in chapter 4 by describing a novel method for producing meaningful s- ments suitable for MPEG-7 description based on binary partition trees (BPTs).

Download or read book 27th Asilomar Conference on Signals Systems and Computers written by and published by IEEE Computer Society Press. This book was released on 1994 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pattern Recognition and Machine Intelligence written by Ashish Ghosh and published by Springer. This book was released on 2007-11-28 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Pattern Recognition and Machine Intelligence, PReMI 2007, held in Kolkata, India in December 2007. The papers are organized in topical sections on pattern recognition, image analysis, soft computing and applications, data mining and knowledge discovery, bioinformatics, signal and speech processing, document analysis and text mining, biometrics, and video analysis.

Download or read book Wavelet Applications in Signal and Image Processing written by and published by . This book was released on 1999 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: