Download or read book M thodes progression rapide et analyse multir solution pour la d tection de contours en traitement d images microforme written by Marc-André Désautels and published by Montréal : Service des archives, Université de Montréal, Section Microfilm. This book was released on 2002 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book M thodes progression rapide et analyse multir solution pour la d tection de contours en traitement d images written by Marc-André Désautels and published by . This book was released on 2002 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initiation au traitement d images Contours couleurs mouvements Cours exercices et TP corrig s written by Franck Luthon and published by Editions Ellipses. This book was released on 2021-09-14 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le livre comporte une première partie de cours sur les images statiques (traitement spatial, détection de contours, couleur, forme) et sur les séquences vidéo (dimension temporelle, mouvement), suivie d'une deuxième partie applicative avec soixante exercices corrigés, et des sujets de travaux pratiques de programmation d'algorithmes simples. Il s'adresse aux étudiants de master sciences et technologie, ou élèves-ingénieurs de toute discipline, ainsi qu’à tout enseignant demandeur d’un manuel de cours contenant des sujets d'exercices et de programmation, à proposer à ses étudiants.

Download or read book PRINCIPES VARIATIONNELS POUR L EXTRACTION DE CONTOURS DANS LES IMAGES MULTI SPECTRALES ET EN COULEUR written by Rémi Ronfard and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LES METHODES VARIATIONNELLES PERMETTENT DE MODELISER LES CONTOURS D'UN OBJET PAR UNE COURBE SPLINE SOUMISE A UNE CONTRAINTE GLOBALE DE CONTRASTE MAXIMAL EN MOYENNE. LA THESE PRESENTE UNE ANALYSE LOCALE DE CES METHODES, QUI PERMET DE TIRER PARTI DES INFORMATIONS DE COULEUR (CRITERE METRIQUE SUR UN SUPPORT CONTINU PAR MORCEAUX), AINSI QUE D'HEURISTIQUES D'EVOLUTION LOIN DE L'EQUILIBRE: VARIATIONS D'ECHELLE ET DIFFUSION PROGRESSIVE DES COULEURS LE LONG DES CONTOURS (PRINCIPES D'ANTICIPATION). CETTE APPROCHE EST ILLUSTREE PAR UN ALGORITHME LINEAIRE PAR RAPPORT AU NOMBRE DE POINTS DU CONTOUR, DONT ON PRESENTE DES APPLICATIONS EN HISTOLOGIE ET EN TELE-DETECTION

Download or read book CONTRIBUTION DE L ANALYSE MULTI RESOLUTION A LA DESCRIPTION DES CONTOURS ET DES TEXTURES written by ERIC.. FAVIER and published by . This book was released on 1994 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE S'ATTACHE A L'ETUDE MULTIRESOLUTION DES CONTOURS DISCRETS ET DES IMAGES A NIVEAUX DE GRIS DE TEXTURE. LE BUT EST DE FOURNIR UNE DESCRIPTION DE CES OBJETS A DIFFERENTES ECHELLES D'ETUDE ET D'ESSAYER DE DETERMINER LA OU LES ECHELLES D'ETUDE LES PLUS APPROPRIEES POUR L'ANALYSE DE CEUX CI. LA PREMIERE PARTIE DE CE TRAVAIL SE RAPPORTE A L'ETUDE DES IMAGES BINAIRES ET PLUS PARTICULIEREMENT A L'ETUDE DES CONTOURS DISCRETS. LA NOTION D'ECHELLE D'ETUDE D'UN CONTOUR EST DEFINIE AINSI QUE DES ALGORITHMES PERMETTANT DE LA CHOISIR. POUR CHAQUE CONTOUR, ON DETERMINE LA (OU LES ECHELLES) D'ETUDE PERMETTANT DE LE DECRIRE DE MANIERE OPTIMALE. DES ALGORITHMES DE CALCULS DE COURBURES EN CHAQUE POINT DU CONTOUR, DE DETERMINATION DE POINTS DOMINANTS EN FONCTION DE L'ECHELLE D'ETUDE CHOISIE SONT DECRITS. UNE DEFINITION DE LA CONVEXITE EST DONNE EN FONCTION DES ETUDES CHOISIES AINSI QUE LA NOTION DE T ENVELOPPE CONVEXE. IL EST EGALEMENT PRESENTE UNE DISTANCE SUR L'ENSEMBLE DES CONTOURS DISCRETS. CETTE DERNIERE EST UNE DISTANCE DE CONVEXITE A UNE ECHELLE D'ETUDE DONNEE QUI PERMET DE COMPARER DEUX CONTOURS INDEPENDAMMENT DE LEUR TAILLE SUR UN CRITERE DE CONVEXITE. DE PLUS, UN LIEN EST TISSE ENTRE CES DIFFERENTS ALGORITHMES ET LES OPERATIONS DE GRANULOMETRIE OU D'OUVERTURES CONNUES DANS LA MORPHOLOGIE MATHEMATIQUE. LA SECONDE PARTIE DE CETTE THESE ABORDE L'ETUDE DES IMAGES EN NIVEAUX DE GRIS MULTITEXTUREES, LA AUSSI LE BUT EST DE DECRIRE CES IMAGES EN FONCTION DE L'ECHELLE D'ETUDE ET DE TROUVER LES BONS PARAMETRES POUR L'ANALYSE DE CE TYPE D'IMAGES. LES METHODES SONT D'ORDRE STATISTIQUE ET LES PROCESSUS MIS EN UVRE SONT LIES AUX APPROCHES MULTIRESOLUTIONS. UN MODELE GAUSSIEN D'IMAGES DE TEXTURE EST PRESENTE. CHAQUE IMAGE EST ETUDIEE A DIFFERENTES ECHELLES D'ETUDE, ET LE CHOIX DE LA MEILLEURE ECHELLE D'ETUDE EST ABORDE CE QUI PERMET DE PROPOSER DES METHODES AUTOMATIQUES DE DETECTION DES ZONES DE TEXTURE SEMBLABLE. DES RESULTATS SONT PRESENTES POUR DES EXEMPLES D'IMAGES MULTITEXTUREES ET UNE ANALYSE DES RESULTATS MONTRE QUE NOS METHODES PERMETTENT DE SEGMENTER DE MANIERE TRES SATISFAISANTE CERTAINES IMAGES QUI POSENT DES PROBLEMES A DE NOMBREUX ALGORITHMES EXISTANTS

Download or read book PRETRAITEMENT ET SEGMENTATION D IMAGES PAR MISE EN UVRE DE TECHNIQUES BASEES SUR LES EQUATIONS AUX DERIVEES PARTIELLES written by SOPHIE.. SCHUPP and published by . This book was released on 2000 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA THESE OFFRE TROIS VOLETS : UNE ANALYSE DE L'APPORT DES EDP POUR LE PRETRAITEMENT ET LA SEGMENTATION, UNE METHODE DE SEGMENTATION BASEE SUR LES EDP ET UNE APPLICATION EN IMAGERIE MICROSCOPIQUE. DANS LE CHAPITRE UN, LA PRESENTATION DES PRETRAITEMENTS PAR EDP S'APPUIE SUR LE MODELE PHYSIQUE DE DIFFUSION NON LINEAIRE, ELLE SE POURSUIVENT AVEC LES METHODES D'ANALYSE MULTIECHELLE QUI S'APPUIENT SUR L'INFORMATION COURBURE ET S'ACHEVE AVEC LES MODELES DE DIFFUSION ANISOTROPE DONT LES FILTRES DE CHOCS ADAPTES AU FILTRAGE ET A LA CONSERVATION DES CONTOURS. LE CHAPITRE DEUX PORTE SUR LA DETECTION DES FRONTIERES PAR DES METHODES VARIATIONNELLES DONT LES CONTOURS ACTIFS ET LES METHODES PAR ENSEMBLES DE NIVEAUX. LEUR PROBLEMATIQUE EST IDENTIFIEE : INITIALISATION, CHOIX DES PARAMETRES, COMPORTEMENT FACE AUX PHENOMENES DE RUPTURES TOPOLOGIQUES. LE CHAPITRE TROIS PRESENTE UN MODELE DE PRETRAITEMENT INTEGRANT LES COMPOSANTES LIEES A LA DIFFUSION, LA REACTION ET LE CHOC. UNE EXTENSION AUX IMAGES COULEURS EST PROPOSEE. LA MORPHOLOGIE CONTINUE EST LA FORMULATION PAR EDP DES FILTRES DE NIVELLEMENT AINSI QUE DES OPERATEURS DE MORPHOLOGIE MATHEMATIQUE. LE CHAPITRE QUATRE EST CONSACRE A LA SEGMENTATION PAR EDP AVEC LE MODELE GEOMETRIQUE NON REGULARISE, IMPLEMENTE PAR LES METHODES A PROGRESSION RAPIDE, A PARTIR DUQUEL LA LPE CONTINUE ET LES DIAGRAMMES DE VORONOI SONT OBTENUS. LE CHAPITRE CINQ PRESENTE UNE METHODE DE SEGMENTATION AUTOMATIQUE FONDEE SUR LES OUTILS DES CHAPITRES PRECEDENTS. L'INITIALISATION AUTOMATIQUE, ETAPE CRUCIALE DES CONTOURS ACTIFS, SE FAIT EN TROIS ETAPES : REGULARISATION PAR DIFFUSION NON LINEAIRE, DETECTION DE GERMES PAR OUTILS MORPHOLOGIQUES, CLASSIFICATION FLOUE. LA LOCALISATION EST EFFECTUEE PAR LA LPE CONTINUE FORMALISEE AVEC LES EDP. LA DESCRIPTION DE LA CLASSIFICATION FLOUE EST SUIVIE DE QUELQUES EXEMPLES D'APPLICATION : CYTOLOGIE, HISTOLOGIE ET L'OS TRABECULAIRE. LE CHAPITRE SIX EST CONSACRE A LA VALIDATION DE LA METHODE SUR UNE APPLICATION EN IMMUNOMARQUAGE NUCLEAIRE.

Download or read book SEGMENTATION D IMAGES written by CHAFIK DJALAL.. KERMAD and published by . This book was released on 1997 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS LE CADRE DE CE MEMOIRE, NOUS AVONS DEVELOPPE UN SYSTEME DE SEGMENTATION ADAPTE A L'ANALYSE DE PLUSIEURS TYPES D'IMAGES, RICHES EN DETAILS ET DONT LES REGIONS PEUVENT ETRE DE NATURE UNIFORME ET/OU TEXTUREE. UN INTERET TOUT PARTICULIER A ETE ACCORDE A L'ASPECT AUTOMATIQUE ET NON-SUPERVISE DU DISPOSITIF. CECI IMPLIQUE, D'UNE PART, LA MULTIPLICATION DES TRAITEMENTS, ET D'AUTRE PART, L'ADOPTION D'UNE DEMARCHE PROGRESSIVE OU LA FORMATION DES PRIMITIVES S'OPERE DE MANIERE COOPERATIVE ET GUIDEE. LE SYSTEME MIS AU POINT ENTRE DANS LE CADRE DES METHODES COOPERATIVES. L'ARCHITECTURE DU SYSTEME PROPOSE COMBINE DEUX CONCEPTS. LE PREMIER, FONDE SUR UN PROCEDE D'INTEGRATION D'INFORMATIONS ISSUES DE DIFFERENTES METHODES, PERMET DE TIRER PARTI DES AVANTAGES DE CHACUNE D'ELLES. LE SECOND CONCEPT S'INSPIRE DE LA PERCEPTION ACTIVE PAR L'INTRODUCTION D'UNE BOUCLE DE RETOUR DANS LE SYSTEME AFIN DE CORRIGER ET D'AJUSTER LES PARAMETRES DE CONTROLE DES DIFFERENTES TECHNIQUES DE SEGMENTATION. LE PRINCIPE DE LA COOPERATION PROPOSEE INTRODUIT UN MECANISME DE VERIFICATION DE LA COHERENCE PAR COMPARAISON DES RESULTATS DES METHODES QUI COOPERENT. CET ASPECT FAIT DEFAUT A UN BON NOMBRE D'APPROCHES COOPERATIVES. LE SYSTEME DEVELOPPE EST COMPOSE DE DEUX MODULES. LE PREMIER EST DEDIE A L'EXTRACTION DE REGIONS UNIFORMES OU FAIBLEMENT TEXTUREES. LE PRINCIPE EST FONDE SUR UNE COOPERATION ITERATIVE ENTRE UNE METHODE DE DETECTION DE CONTOURS ET UNE METHODE D'AGREGATION DE POINTS. CES DEUX METHODES SONT ITEREES AVEC DES CRITERES DE PLUS EN PLUS TOLERANTS JUSQU'A LA CONVERGENCE VERS DES RESULTATS COHERENTS ET STABLES. LA COHERENCE EST REALISEE EN MINIMISANT UNE DISTANCE DE SIMILARITE ENTRE LES CONTOURS ET LES REGIONS. LE BUT EST AINSI DE FOURNIR UNE SOLUTION OPTIMALE AU SENS DE LA COMPATIBILITE ENTRE LES DEUX SEGMENTATIONS. LE SECOND MODULE LOCALISE LES PRIMITIVES TEXTURES AFIN DE REACTUALISER ET CORRIGER LES PRIMITIVES CONTOURS ET REGIONS EXTRAITES PAR LE PREMIER MODULE. CETTE LOCALISATION S'APPUIE SUR UNE CLASSIFICATION AUTOMATIQUE PAR MULTI-SEUILLAGE EXPLOITANT CERTAINS MECANISMES DE LA PERCEPTION VISUELLE, ET SUR UNE FUSION DES REGIONS MULTI-SEUILLEES MINIMISANT UN CRITERE DE SIMILARITE. L'EFFICACITE DE NOTRE APPROCHE S'EST TRADUITE, DANS LA PLUPART DES CAS EXAMINES, PAR UNE DETECTION COHERENTE DES ELEMENTS REPRESENTATIFS DE L'IMAGE. ELLE A ETE PARTICULIEREMENT CONSTATEE LORS DE LA COMPARAISON AVEC D'AUTRES METHODES. MOTS-CLES : SEGMENTATION D'IMAGES, COOPERATION DE METHODES, DETECTION DE CONTOURS, ANALYSE DE TEXTURES, PERCEPTION DU CONTRASTE, ADAPTATIVITE, MESURE DE LA COHERENCE, DISTANCE ENTRE IMAGES DE CONTOURS, EVALUATION DES RESULTATS DE SEGMENTATION.

Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture

Download or read book Philosophy manual a South South perspective written by Chanthalangsy, Phinith and published by UNESCO Publishing. This book was released on 2014-12-31 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description

Download or read book Low Frequency Scattering written by George Dassios and published by Oxford University Press. This book was released on 2000 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scattering theory deals with the interactions of waves with obstacles in their path, and low frequency scattering occurs when the obstacles involved are very small. This book gives an overview of the subject for graduates and researchers, for the first time unifying the theories covering acoustic, electromagnetic and elastic waves.

Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.

Download or read book Biosocialities Genetics and the Social Sciences written by Sahra Gibbon and published by Routledge. This book was released on 2007-07-20 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biosocialities, Genetics and the Social Sciences explores the social, cultural and economic transformations that result from innovations in genomic knowledge and technology. This pioneering collection uses Paul Rabinow’s concept of biosociality to chart the shifts in social relations and ideas about nature, biology and identity brought about by developments in biomedicine. Based on new empirical research, it contains chapters on genomic research into embryonic stem cell therapy, breast cancer, autism, Parkinson’s and IVF treatment, as well as on the expectations and education surrounding genomic research. It covers four main themes: novel modes of identity and identification, such as genetic citizenship the role of institutions, ranging from disease advocacy organizations and voluntary organizations to the state the production of biological knowledge, novel life-forms, and technologies the generation of wealth and commercial interests in biology. Including an afterword by Paul Rabinow and case studies on the UK, US, Canada, Germany, India and Israel, this book is key reading for students and researchers of the new genetics and the social sciences – particularly medical sociologists, medical anthropologists and those involved with science and technology studies.

Download or read book Market Assessment Study of New Media Learning Materials written by Canada. Industry Canada and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Africa from the Sixteenth to the Eighteenth Century written by Bethwell A. Ogot and published by Univ of California Press. This book was released on 1992 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: The result of years of work by scholars from all over the world, The UNESCO General History of Africa reflects how the different peoples of Africa view their civilizations and shows the historical relationships between the various parts of the continent. Historical connections with other continents demonstrate Africa's contribution to the development of human civilization. Each volume is lavishly illustrated and contains a comprehensive bibliography. This fifth volume of the acclaimed series covers the history of the continent from the beginning of the sixteenth century to the close of the eighteenth century in which two themes emerge: first, the continuing internal evolution of the states and cultures of Africa during this period second, the increasing involvement of Africa in external trade--with major but unforeseen consequences for the whole world. In North Africa, we see the Ottomans conquer Egypt. South of the Sahara, some of the larger, older states collapse, and new power bases emerge. Traditional religions continue to coexist with both Christianity (suffering setbacks) and Islam (in the ascendancy). Along the coast, particularly of West Africa, Europeans establish a trading network which, with the development of New World plantation agriculture, becomes the focus of the international slave trade. The immediate consequences of this trade for Africa are explored, and it is argued that the long-term global consequences include the foundation of the present world-economy with all its built-in inequalities.

Download or read book Mathematics Education and History written by Kathleen M. Clark and published by Springer. This book was released on 2018-03-30 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes 18 peer-reviewed papers from nine countries, originally presented in a shorter form at TSG 25 The Role of History of Mathematics in Mathematics Education, as part of ICME-13 during. It also features an introductory chapter, by its co-editors, on the structure and main points of the book with an outline of recent developments in exploring the role of history and epistemology in mathematics education. It serves as a valuable contribution in this domain, by making reports on recent developments in this field available to the international educational community, with a special focus on relevant research results since 2000. The 18 chapters of the book are divided into five interrelated parts that underlie the central issues of research in this domain: 1. Theoretical and conceptual frameworks for integrating history and epistemology in mathematics in mathematics education; 2. Courses and didactical material: Design, implementation and evaluation; 3. Empirical investigations on implementing history and epistemology in mathematics education; 4. Original historical sources in teaching and learning of and about mathematics; 5. History and epistemology of mathematics: Interdisciplinary teaching and sociocultural aspects. This book covers all levels of education, from primary school to tertiary education, with a particular focus on teacher education. Additionally, each chapter refers to and/or is based on empirical research, in order to support, illuminate, clarify and evaluate key issues, main questions, and conjectured theses raised by the authors or in the literature on the basis of historical-epistemological or didactical-cognitive arguments.

Download or read book Cover Crops in Hillside Agriculture written by Daniel Buckles and published by IDRC. This book was released on 1998 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in Hillside Agriculture: Farmer innovation with Mucuna