Download or read book Methodes adaptatives en codage predictif des images numeriques written by Jean-Christophe Pesquet and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Signal Processing VI written by J. Vandewalle and published by Elsevier. This book was released on 2012-12-02 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: This was the sixth in the sequence of the international conferences promoted and organized by the European Association for Signal Processing. The conference has established itself as one of the world's largest and most important meetings on the subject. The 444 papers (in three volumes) are organized under 7 themes, containing the following topics:1. Theory of Signals and Systems:a) Detection, b) Estimation, c) Filtering, d)Spectral estimation, e) Adaptive systems, f) Modeling, g) Digital transforms, h) Digital filtering.2. Image Processing and Multidimensional Signal Processing:a) Coding, b) Enhancement, c) Restoration, d) Medical image processing.3. Speech Processing:a) Coding, b) Synthesis, c) Recognition and understanding, d) Enhancement.4. Implementations:a) Hardware, b) Software, c) VLSI, d) Novel Architectures, e) Array processing.5. Knowledge Engineering and Signal Processing:a) Expert systems, b) Pattern recognition, c) Signal interpretation, d) Image understanding.6. Neural Networks for Signal Processing:a) Theory, b) Speech, c) Vision, d) Implementations. 7. Applications:a) Radar, b) Sonar, c) Communications, d) Geophysics, e) Digital audio, f) Biomedics, g) Sensing, h) Robotics, i) Astrophysics, j) Mechanics, k) other. The diversity of topics in this 3-volume set, as well as the extraordinary tempo at which Signal Processing has progressed, attest to the permanent vitality of this area of research and development. Workers in signal processing will find in these papers the latest advances and results, as well as indications on future research and analysis in this rapidly developing field.
Download or read book Motion Analysis for Image Sequence Coding written by G. Tziritas and published by . This book was released on 1994 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the fourth in the book series, Advances in Image Communication, a series dedicated to exploring the rapidly evolving, multidisciplinary field of image communications. Each publication stands alone as a state-of-the-art reference work in its particular area of expertise. It also forms an integral part of the comprehensive overview of developments across the field, which the series offers as a whole. Motion Analysis for Image Sequence Coding documents the technical advances made through the years in dealing with motion in image sequences - from straightforward coarse approaches to complicated algorithms. It is timely because of the unprecedented effort which is made to establish a set of international standards for the digital compression of moving pictures and television signals. These standards rely heavily on motion estimation and compensation techniques and will be exploited on a large scale in multimedia applications as well as in intelligent systems. The book will be of prime importance, not only to active engineers and researchers in the field, but also by serving as a basic educational tool.
Download or read book COMPRESSION D IMAGES PAR PREDICTION written by AHMAD.. DAABOUL and published by . This book was released on 1996 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOTRE THESE PORTE SUR LA COMPRESSION D'IMAGES SANS PERTE D'INFORMATION. NOUS PROPOSONS TROIS TYPES DE CODAGES: LE CODAGE PAR PREFIXE, LE CODAGE PREDICTIF ET LE CODAGE PAR ARBRE DE PREDICTION POUR EFFECTUER LA COMPRESSION. DANS LA PREMIERE TECHNIQUE, LE PIXEL COURANT EST REMPLACE PAR UN COUPLE D'ENTIERS. LES COUPLES AINSI OBTENUS SONT CODES PAR UN CODAGE ARITHMETIQUE AVEC UN MODELE DE PROBABILITE D'ORDRE 0 EN UTILISANT UN AUTOMATE. NOUS PROPOSONS DEUX METHODES DIFFERENTES POUR LE CODAGE PREDICTIF: LES PREDICTEURS ET LES SCHEMAS OPTIMAUX DE PREDICTION. DANS LA TECHNIQUE DES PREDICTEURS, L'IMAGE ORIGINALE EST TRAITEE PAR LES PREDICTEURS QUE NOUS AVONS DEFINIS AFIN DE CALCULER L'IMAGE PREDITE. LA DIFFERENCE ENTRE L'IMAGE ORIGINALE ET L'IMAGE PREDITE EST APPELEE L'IMAGE D'ERREURS. L'IDEE PRINCIPALE DE LA TECHNIQUE DES SCHEMAS OPTIMAUX DE PREDICTION CONSISTE A DECOUPER L'IMAGE ORIGINALE EN BLOCS OU EN LIGNES PUIS A RECHERCHER POUR CHACUN DE CES BLOCS (OU LIGNES) LE PREDICTEUR QUI FOURNIT LA MEILLEURE PREDICTION. L'IMAGE D'ERREURS CALCULEE PAR CES METHODES EST CODES A L'AIDE D'UN CODAGE ARITHMETIQUE AVEC UN MODELE DE PROBABILITE D'ORDRE 0. DANS LA TECHNIQUE D'ARBRES DE PREDICTION, L'IMAGE ORIGINALE EST REPRESENTEE PAR UN GRAPHE. ON CHERCHE DANS CE GRAPHE UN ARBRE RECOUVRANT DONT LE CODAGE EST DE TAILLE MINIMALE. NOUS CODONS ENSUITE LES POIDS DES ARETES DE L'ARBRE CALCULE AU MOYEN DU CODAGE ARITHMETIQUE AVEC UN MODELE DE PROBABILITE D'ORDRE 0. LES RESULTATS QUE NOUS AVONS OBTENUS AVEC CES DIFFERENTES METHODES SONT SUPERIEURS A CEUX OBTENUS AVEC LES METHODES DE COMPRESSION GENERALES ET SPECIALISEES SUR LES IMAGES
Download or read book Estimation r cursive de l tat local des contours d images et application la pr diction adaptative en codage differentiel de signaux de t l vision written by CHRISTIAN.. RICHARD and published by . This book was released on 1979 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: SUIVI ET ESTIMATION RECURSIVE DE L'ETAT LOCAL DES CONTOURS D'UNE IMAGE QUE CELLE-CI SOIT OU NON UNE IMAGE DE TELEVISION. UTILISATION POUR UN SYSTEME DE MODULATION PAR IMPULSIONS CODEES DIFFERENTIELLE A PREDICTION ADAPTATIVE AVEC POUR BUT SOIT D'ACCROITRE LA QUALITE DES IMAGES DE TELEVISION RESTITUEES APRES UN CODAGE NUMERIQUE A 34 MEB/S SOIT DE DIMINUER LE DEBIT DE SYSTEMES DE TRANSMISSION NUMERIQUES D'IMAGES EN CONSERVANT UNE QUALITE DONNEE
Download or read book Approximation lin aire et non lin aire de fonctions al atoires written by Jean-Pierre d' Alès de Corbet and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse est une étude théorique sur les algorithmes de compression des signaux et des images numériques qui utilisent le codage de transformée. Cette étude repose essentiellement sur la notion de concentration de l'énergie sur les coefficients de la transformée, qui est formalisée à l'aide de la théorie de l'approximation. Deux définitions différentes de la concentration de l'énergie sont ainsi présentées. Elles sont reliées respectivement à l'approximation linéaire et non linéaire. Elles sont aussi naturellement associées à deux grandes classes de méthodes de quantification et de codage des coefficients dans les schémas de compression utilisant le codage par transformée. La première pourrait être qualifiée de fixe, et la seconde d'adaptative. Les résultats mathématiques sur l'approximation linéaire et non linéaire dans cette thèse présentent un intérêt intrinsèque. Ils relient la régularité des processus aléatoires d'une part, et la qualité de l'approximation ou la concentration de l'énergie dans les bases hilbertiennes d'autre part. La modélisation mathématique des images joue ici un rôle important. Deux grandes classes de modèles sont examinées de manière plus approfondie. L'une est basée sur la famille des espaces fonctionnels de Besov. L'autre fait appel à des processus aléatoires du second ordre. En particulier une nouvelle classe de tels processus, appelés processus stationnaires par morceaux, est introduite pour essayer de reproduire dans un cadre unidimensionnel le caractère transitoire des images et de certains signaux. Enfin une illustration pratique de l'étude théorique menée dans cette thèse est donnée. Elle suggère notamment que pour quantifier et coder la transformée en ondelettes des images, l'utilisation d'une méthode adaptative se traduit par une amélioration substantielle des performances par rapport à une méthode non adaptative.
Download or read book UN PROCEDE D ADRESSAGE PAR LE CONTENU POUR L ANALYSE ET LA COMPRESSION D IMAGES NUMERIQUES ANIMEES ET INANIMEES written by PHILIPPE.. LELASSEUX and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE PRESENTE UN RAPPEL DE DIFFERENTES METHODES DE COMPRESSION D'IMAGES NUMERIQUES. PUIS, IL DECRIT UNE OPERATION ELEMENTAIRE DE TYPE ADRESSAGE PAR LE CONTENU BAPTISEE ADRESSAGE SPATIAL QUI SERA UTILISE POUR RESOUDRE DEUX TYPES DE PROBLEMES: LA COMPRESSION D'IMAGES NUMERIQUES ANIMEES ET LA COMPRESSION D'IMAGES NUMERIQUES INANIMEES. POUR CELA, LA MODELISATION ET LA SIMULATION D'UNE MACHINE NEURONALE DEJA EXISTANTE QUI NE TRAITE QUE DES IMAGES DE TAILLE 1010, NOUS A PERMIS D'ETENDRE SON FONCTIONNEMENT A DES IMAGES NATURELLES. LA TECHNIQUE DE COMPRESSION POUR LES IMAGES NUMERIQUES ANIMEES REPOSE SUR LA REPRESENTATION D'UNE IMAGE PAR LES ENTITES COHERENTES QUI LA COMPOSENT. PENDANT UNE PHASE DITE D'APPRENTISSAGE, CES ENTITES SONT EXTRAITES DE L'IMAGE GRACE A UN FILTRE DE NOUVEAUTES ET A L'ADRESSAGE SPATIAL. UN ALGORITHME D'APPRENTISSAGE PERMET DE LES MEMORISER LORSQU'ELLES ONT ATTEINT UNE CERTAINE STABILITE. APRES CETTE PHASE, TOUTE NOUVELLE IMAGE EST FILTREE PAR CE PROCEDE ET UN ESTIMATEUR DE MOUVEMENTS CORRIGE LES TRANSLATIONS DES ENTITES. CECI REDUIT L'IMAGE A QUELQUES PIXELS, QUI SONT CODES PAR UN CODAGE PAR PLAGE, ET A QUELQUES INDICATIONS DE TRANSLATIONS. AINSI UNE TRANSMISSION D'IMAGES DEBUTE PAR L'EMISSION DES ENTITES APPRISES, PUIS SE POURSUIT PAR L'ENVOI DE CES INFORMATIONS. LE FACTEUR (OU TAUX) DE COMPRESSION OBTENU, DEFINI COMME LE RAPPORT DU NOMBRE DE BITS OCCUPES PAR UNE IMAGE NUMERISEE SUR LE NOMBRE DE BITS REELLEMENT TRANSMIS, VARIE DE 30 A 70. LA TECHNIQUE DE COMPRESSION DEVELOPPEE, POUR LES IMAGES NUMERIQUES INANIMEES, EST BASEE SUR LE RENFORCEMENT DE LA CORRELATION SPATIALE DES IMAGES PAR UNE TRANSFORMATION. CELLE-CI EST APPELEE TRANSFORMEE PAR PROPAGATION, ET EST ISSUE DE L'ADRESSAGE SPATIAL. LE CODAGE DE CETTE NOUVELLE TRANSFORMEE PAR DIFFERENCIATION OU PAR PREDICTION SPATIALE AMENE ACTUELLEMENT LE FACTEUR DE COMPRESSION ENTRE 3 ET 4
Download or read book Telecommunication Journal written by and published by . This book was released on 1989 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MDA Explained written by Anneke G. Kleppe and published by Addison-Wesley Professional. This book was released on 2003 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Highlights of this book include: the MDA framework, including the Platform Independent Model (PIM) and Platform Special Model (PSM); OMG standards and the use of UML; MDA and Agile, Extreme Programming, and Rational Unified Process (RUP) development; how to apply MDA, including PIM-to-PSM and PSM-to-code transformations for Relational, Enterprise JavaBean (EJB), and Web models; transformations, including controlling and tuning, traceability, incremental consistency, and their implications; metamodeling; and relationships between different standards, including Meta Object Facility (MOF), UML, and Object Constraint Language (OCL)."--Jacket.
Download or read book The R Book written by Michael J. Crawley and published by John Wiley & Sons. This book was released on 2007-06-13 with total page 953 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-level language of R is recognized as one of the mostpowerful and flexible statistical software environments, and israpidly becoming the standard setting for quantitative analysis,statistics and graphics. R provides free access to unrivalledcoverage and cutting-edge applications, enabling the user to applynumerous statistical methods ranging from simple regression to timeseries or multivariate analysis. Building on the success of the author’s bestsellingStatistics: An Introduction using R, The R Book ispacked with worked examples, providing an all inclusive guide to R,ideal for novice and more accomplished users alike. The bookassumes no background in statistics or computing and introduces theadvantages of the R environment, detailing its applications in awide range of disciplines. Provides the first comprehensive reference manual for the Rlanguage, including practical guidance and full coverage of thegraphics facilities. Introduces all the statistical models covered by R, beginningwith simple classical tests such as chi-square and t-test. Proceeds to examine more advance methods, from regression andanalysis of variance, through to generalized linear models,generalized mixed models, time series, spatial statistics,multivariate statistics and much more. The R Book is aimed at undergraduates, postgraduates andprofessionals in science, engineering and medicine. It is alsoideal for students and professionals in statistics, economics,geography and the social sciences.
Download or read book Neural Networks written by Gérard Dreyfus and published by Springer Science & Business Media. This book was released on 2005-11-25 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural networks represent a powerful data processing technique that has reached maturity and broad application. When clearly understood and appropriately used, they are a mandatory component in the toolbox of any engineer who wants make the best use of the available data, in order to build models, make predictions, mine data, recognize shapes or signals, etc. Ranging from theoretical foundations to real-life applications, this book is intended to provide engineers and researchers with clear methodologies for taking advantage of neural networks in industrial, financial or banking applications, many instances of which are presented in the book. For the benefit of readers wishing to gain deeper knowledge of the topics, the book features appendices that provide theoretical details for greater insight, and algorithmic details for efficient programming and implementation. The chapters have been written by experts and edited to present a coherent and comprehensive, yet not redundant, practically oriented introduction.
Download or read book Gazette Du Bureau Des Brevets written by Canada. Patent Office and published by . This book was released on 1986 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes annual cumulative index of inventors and patentees.
Download or read book Active Subspaces written by Paul G. Constantine and published by SIAM. This book was released on 2015-03-17 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and engineers use computer simulations to study relationships between a model's input parameters and its outputs. However, thorough parameter studies are challenging, if not impossible, when the simulation is expensive and the model has several inputs. To enable studies in these instances, the engineer may attempt to reduce the dimension of the model's input parameter space. Active subspaces are an emerging set of dimension reduction tools that identify important directions in the parameter space. This book describes techniques for discovering a model's active subspace and proposes methods for exploiting the reduced dimension to enable otherwise infeasible parameter studies. Readers will find new ideas for dimension reduction, easy-to-implement algorithms, and several examples of active subspaces in action.
Download or read book JPEG2000 Image Compression Fundamentals Standards and Practice written by David Taubman and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is nothing less than a totally essential reference for engineers and researchers in any field of work that involves the use of compressed imagery. Beginning with a thorough and up-to-date overview of the fundamentals of image compression, the authors move on to provide a complete description of the JPEG2000 standard. They then devote space to the implementation and exploitation of that standard. The final section describes other key image compression systems. This work has specific applications for those involved in the development of software and hardware solutions for multimedia, internet, and medical imaging applications.
Download or read book Expanding the Lexicon written by Sabine Arndt-Lappe and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-01-22 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The creation of new lexical units and patterns has been studied in different research frameworks, focusing on either system-internal or system-external aspects, from which no comprehensive view has emerged. The volume aims to fill this gap by studying dynamic processes in the lexicon – understood in a wide sense as not being necessarily limited to the word level – by bringing together approaches directed to morphological productivity as well as approaches analyzing general types of lexical innovation and the role of discourse-related factors. The papers deal with ongoing changes as well as with historical processes of change in different languages and reflect on patterns and specific subtypes of lexical innovation as well as on their external conditions and the speakers’ motivations for innovating. Moreover, the diffusion and conventionalization of innovations will be addressed. In this way, the volume contributes to understanding the complex interplay of structural, cognitive and functional factors in the lexicon as a highly dynamic domain.
Download or read book ICTs and Sustainable Solutions for the Digital Divide Theory and Perspectives written by Steyn, Jacques and published by IGI Global. This book was released on 2010-09-30 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: ICTs and Sustainable Solutions for the Digital Divide: Theory and Perspectives focuses on Information and Communication Technologies for Development (ICT4D), which includes any technology used for communication and information. This publication researches the social side of computing, the users, and the design of systems that meet the needs of "ordinary" users.
Download or read book Medical Image Computing and Computer Assisted Intervention MICCAI 2012 written by Nicholas Ayache and published by Springer. This book was released on 2012-08-28 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three-volume set LNCS 7510, 7511, and 7512 constitutes the refereed proceedings of the 15th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2012, held in Nice, France, in October 2012. Based on rigorous peer reviews, the program committee carefully selected 252 revised papers from 781 submissions for presentation in three volumes. The third volume includes 79 papers organized in topical sections on diffusion imaging: from acquisition to tractography; image acquisition, segmentation and recognition; image registration; neuroimage analysis; analysis of microscopic and optical images; image segmentation; diffusion weighted imaging; computer-aided diagnosis and planning; and microscopic image analysis.
