ARCHITECTURE ELECTRONIQUE DEDIEE AUX ALGORITHMES RAPIDES DE SEGMENTATION BASES SUR LA MORPHOLOGIE MATHEMATIQUE PDF Download
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Author: FABRICE.. LEMONNIER
Publisher:
ISBN:
Category :
Languages : fr
Pages : 211
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Book Description
EN MORPHOLOGIE MATHEMATIQUE, UN DES OUTILS LES PLUS PERFORMANTS POUR SEGMENTER UNE IMAGE EST LA LIGNE DE PARTAGE DES EAUX (LPE). CEPENDANT SES TEMPS DE TRAITEMENT PROHIBITIFS SONT UN FREIN A SON UTILISATION DANS LES APPLICATIONS TEMPS REEL ET DANS CERTAINES APPLICATIONS INDUSTRIELLES. DANS CETTE THESE, NOUS PROPOSONS UNE ARCHITECTURE ELECTRONIQUE PERFORMANTE DE SEGMENTATION D'IMAGES BASEE SUR LA LPE. DANS UN PREMIER TEMPS, NOUS DETERMINONS LA STRUCTURE DE BASE LA MIEUX ADAPTEE POUR IMPLANTER LES TRANSFORMATIONS DE LA MORPHOLOGIE MATHEMATIQUE ET EN PARTICULIER CELLES IMPLIQUEES DANS LE CALCUL DE LA LPE: IL S'AGIT DES OPERATEURS DE VOISINAGE RECURSIF (OVR) AVEC UNE SEQUENCE DE TRAITEMENT, SOIT DE TYPE BALAYAGE VIDEO, SOIT DETERMINEE PAR UNE FILE D'ATTENTE HIERARCHIQUE (FAH). DANS UN DEUXIEME TEMPS, NOUS SOMMES AMENES A CONSTATER QUE LES ALGORITHMES LES PLUS EFFICACES POUR CALCULER LA LPE SONT DES ALGORITHMES DE ZONE DE PARTAGE DES EAUX (ZPE) ET QUE LE PROCESSUS DE SEGMENTATION IMPLIQUE L'UTILISATION DE TRANSFORMATIONS TELLES QUE LA RECONSTRUCTION NUMERIQUE, LA LABELISATION ET DE MANIERE INDIRECTE LA DILATATION 1D PAR DES ELEMENTS STRUCTURANTS DE GRANDE TAILLE. NOUS PROPOSONS DONC DEUX IMPLANTATIONS DE LA ZPE, L'UNE BASEE SUR UN OVR A FAH ET L'AUTRE SUR UN OVR A BALAYAGE VIDEO, TOUTES DEUX ISSUES DE LA FORMALISATION DE LA LPE BASEE SUR LA DISTANCE TOPOGRAPHIQUE. NOUS DECRIVONS EGALEMENT UN ALGORITHME DE LABELISATION A REUTILISATION DE LABELS AINSI QUE SON IMPLANTATION ELECTRONIQUE DANS UNE ARCHITECTURE BASEE SUR UN OVR A BALAYAGE VIDEO. NOUS ETUDIONS EGALEMENT UNE IMPLANTATION PERFORMANTE DE LA DILATATION 1D PAR DES ELEMENTS STRUCTURANTS DE GRANDE TAILLE, TRANSFORMATION SOUVENT UTILISEE DANS L'ETAPE DE PRE-TRAITEMENT. POUR FINIR, NOUS AVONS VALIDE L'ENSEMBLE DES ARCHITECTURES PROPOSEE DANS CETTE THESE, BASEES SUR UN OVR A BALAYAGE VIDEO, PAR UNE REALISATION MATERIELLE A L'AIDE DE COMPOSANTS PROGRAMMABLES. LA VITESSE D'EXECUTION OBTENUE POUR UNE FREQUENCE HORLOGE DE 10MHZ EST ALORS PLUS DE DIX FOIS SUPERIEURE A CELLE D'UNE SUN SPARC 10
Author: FABRICE.. LEMONNIER
Publisher:
ISBN:
Category :
Languages : fr
Pages : 211
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Book Description
EN MORPHOLOGIE MATHEMATIQUE, UN DES OUTILS LES PLUS PERFORMANTS POUR SEGMENTER UNE IMAGE EST LA LIGNE DE PARTAGE DES EAUX (LPE). CEPENDANT SES TEMPS DE TRAITEMENT PROHIBITIFS SONT UN FREIN A SON UTILISATION DANS LES APPLICATIONS TEMPS REEL ET DANS CERTAINES APPLICATIONS INDUSTRIELLES. DANS CETTE THESE, NOUS PROPOSONS UNE ARCHITECTURE ELECTRONIQUE PERFORMANTE DE SEGMENTATION D'IMAGES BASEE SUR LA LPE. DANS UN PREMIER TEMPS, NOUS DETERMINONS LA STRUCTURE DE BASE LA MIEUX ADAPTEE POUR IMPLANTER LES TRANSFORMATIONS DE LA MORPHOLOGIE MATHEMATIQUE ET EN PARTICULIER CELLES IMPLIQUEES DANS LE CALCUL DE LA LPE: IL S'AGIT DES OPERATEURS DE VOISINAGE RECURSIF (OVR) AVEC UNE SEQUENCE DE TRAITEMENT, SOIT DE TYPE BALAYAGE VIDEO, SOIT DETERMINEE PAR UNE FILE D'ATTENTE HIERARCHIQUE (FAH). DANS UN DEUXIEME TEMPS, NOUS SOMMES AMENES A CONSTATER QUE LES ALGORITHMES LES PLUS EFFICACES POUR CALCULER LA LPE SONT DES ALGORITHMES DE ZONE DE PARTAGE DES EAUX (ZPE) ET QUE LE PROCESSUS DE SEGMENTATION IMPLIQUE L'UTILISATION DE TRANSFORMATIONS TELLES QUE LA RECONSTRUCTION NUMERIQUE, LA LABELISATION ET DE MANIERE INDIRECTE LA DILATATION 1D PAR DES ELEMENTS STRUCTURANTS DE GRANDE TAILLE. NOUS PROPOSONS DONC DEUX IMPLANTATIONS DE LA ZPE, L'UNE BASEE SUR UN OVR A FAH ET L'AUTRE SUR UN OVR A BALAYAGE VIDEO, TOUTES DEUX ISSUES DE LA FORMALISATION DE LA LPE BASEE SUR LA DISTANCE TOPOGRAPHIQUE. NOUS DECRIVONS EGALEMENT UN ALGORITHME DE LABELISATION A REUTILISATION DE LABELS AINSI QUE SON IMPLANTATION ELECTRONIQUE DANS UNE ARCHITECTURE BASEE SUR UN OVR A BALAYAGE VIDEO. NOUS ETUDIONS EGALEMENT UNE IMPLANTATION PERFORMANTE DE LA DILATATION 1D PAR DES ELEMENTS STRUCTURANTS DE GRANDE TAILLE, TRANSFORMATION SOUVENT UTILISEE DANS L'ETAPE DE PRE-TRAITEMENT. POUR FINIR, NOUS AVONS VALIDE L'ENSEMBLE DES ARCHITECTURES PROPOSEE DANS CETTE THESE, BASEES SUR UN OVR A BALAYAGE VIDEO, PAR UNE REALISATION MATERIELLE A L'AIDE DE COMPOSANTS PROGRAMMABLES. LA VITESSE D'EXECUTION OBTENUE POUR UNE FREQUENCE HORLOGE DE 10MHZ EST ALORS PLUS DE DIX FOIS SUPERIEURE A CELLE D'UNE SUN SPARC 10
Author: Laurent Najman
Publisher: John Wiley & Sons
ISBN: 1118600851
Category : Technology & Engineering
Languages : en
Pages : 407
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Book Description
Mathematical Morphology allows for the analysis and processing of geometrical structures using techniques based on the fields of set theory, lattice theory, topology, and random functions. It is the basis of morphological image processing, and finds applications in fields including digital image processing (DSP), as well as areas for graphs, surface meshes, solids, and other spatial structures. This book presents an up-to-date treatment of mathematical morphology, based on the three pillars that made it an important field of theoretical work and practical application: a solid theoretical foundation, a large body of applications and an efficient implementation. The book is divided into five parts and includes 20 chapters. The five parts are structured as follows: Part I sets out the fundamental aspects of the discipline, starting with a general introduction, followed by two more theory-focused chapters, one addressing its mathematical structure and including an updated formalism, which is the result of several decades of work. Part II extends this formalism to some non-deterministic aspects of the theory, in particular detailing links with other disciplines such as stereology, geostatistics and fuzzy logic. Part III addresses the theory of morphological filtering and segmentation, featuring modern connected approaches, from both theoretical and practical aspects. Part IV features practical aspects of mathematical morphology, in particular how to deal with color and multivariate data, links to discrete geometry and topology, and some algorithmic aspects; without which applications would be impossible. Part V showcases all the previously noted fields of work through a sample of interesting, representative and varied applications.
Author: Fernand Meyer
Publisher: John Wiley & Sons
ISBN: 1119579554
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
Mathematical morphology has developed a powerful methodology for segmenting images, based on connected filters and watersheds. We have chosen the abstract framework of node- or edge-weighted graphs for an extensive mathematical and algorithmic description of these tools. Volume 1 is devoted to watersheds. The topography of a graph appears by observing the evolution of a drop of water moving from node to node on a weighted graph, along flowing paths, until it reaches regional minima. The upstream nodes of a regional minimum constitute its catchment zone. The catchment zones may be constructed independently of each other and locally, in contrast with the traditional approach where the catchment basins have to be constructed all at the same time. Catchment zones may overlap, and thus, a new segmentation paradigm is proposed in which catchment zones cover each other according to a priority order. The resulting partition may then be corrected, by local and parallel treatments, in order to achieve the desired precision.
Author: Christophe Laurent
Publisher:
ISBN:
Category :
Languages : fr
Pages : 249
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Book Description
DANS LE DOMAINE DE LA COMPRESSION VIDEO, LES TECHNIQUES DE CODAGE DE SECONDE GENERATION PRENNENT EN COMPTE LES PROPRIETES DU SYSTEME VISUEL HUMAIN AFIN D'OBTENIR DES TAUX DE COMPRESSION SATISFAISANTS. OR, POUR L'OEIL HUMAIN, LA QUASI-TOTALITE DE L'INFORMATION EST CONTENUE DANS LE CONTOUR ET LA TEXTURE DES OBJETS PRESENTS DANS UNE SCENE. AINSI, DE NOMBREUSES TECHNIQUES DE CODAGE UTILISENT UNE ETAPE PRELIMINAIRE DE SEGMENTATION D'IMAGES AFIN DE DETECTER CES DIFFERENTS OBJETS. POUR UNE APPLICATION FINALE DE CODAGE, LA SEGMENTATION NE DOIT PAS FOURNIR UNE PARTITION EXACTE DE L'ESPACE MAIS UNE PARTITION POUVANT ETRE CODEE EFFICACEMENT TOUT EN ETANT PROCHE DES OBJETS REELS. DANS CES TRAVAUX, NOUS NOUS SOMMES INTERESSES AUX TECHNIQUES DE SEGMENTATION BASEES CODAGE UTILISANT DES OUTILS ISSUS DE LA MORPHOLOGIE MATHEMATIQUE. LA MORPHOLOGIE MATHEMATIQUE OFFRE EN EFFET UNE APPROCHE PARTICULIEREMENT PUISSANTE AU PROBLEME DE SEGMENTATION EN INTEGRANT NATURELLEMENT DES NOTIONS VISUELLES TELLES QUE LA FORME, LA TAILLE, LE CONTRASTE, ETC. MALHEUREUSEMENT, UNE APPLICATION DE SEGMENTATION MORPHOLOGIQUE DEMANDE UNE QUANTITE DE CALCUL IMPORTANTE ET NOUS PROPOSONS DONC DANS CETTE THESE DIFFERENTS ALGORITHMES MORPHOLOGIQUES PARALLELES POUVANT ETRE UTILISES DANS UN PROCESSUS DE SEGMENTATION. PARMI CES ALGORITHMES, ON TROUVE LES TRANSFORMATIONS MORPHOLOGIQUES ELEMENTAIRES, LES OPERATEURS MORPHOLOGIQUES CONNEXES BASES SUR UN PROCESSUS DE RECONSTRUCTION GEODESIQUE, L'ETIQUETAGE D'IMAGES ET LA TRANSFORMATION WATERSHED. CHACUN DE CES ALGORITHMES SE PRETE PLUS OU MOINS BIEN AU PARALLELISME ET NOUS AVONS PU CONSTATER QUE DANS CERTAINS CAS, DES TECHNIQUES PARALLELES AVANCEES (APPROCHE ASYNCHRONE, EQUILIBRAGE DE CHARGE, UTILISATION DE STRUCTURES DE DONNEES NON TRIVIALES) DEVAIENT ETRE MISES EN PLACE AFIN DE MASQUER L'IRREGULARITE DU PROBLEME. TOUS LES ALGORITHMES PROPOSES ONT ETE INTEGRES DANS UNE APPLICATION PARALLELE DE SEGMENTATION MORPHOLOGIQUE ET LES EXPERIMENTATIONS MENEES SUR UNE ARCHITECTURE PARALLELE DE TYPE IBM SP2 ONT MIS EN EVIDENCE DES PERFORMANCES TOUT A FAIT CONVAINCANTES.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: Ying-Lie O
Publisher: Springer Science & Business Media
ISBN: 366203039X
Category : Computers
Languages : en
Pages : 685
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Book Description
The fields of image analysis, computer vision, and artificial intelligence all make use of descriptions of shape in grey-level images. Most existing algorithms for the automatic recognition and classification of particular shapes have been devel oped for specific purposes, with the result that these methods are often restricted in their application. The use of advanced and theoretically well-founded math ematical methods should lead to the construction of robust shape descriptors having more general application. Shape description can be regarded as a meeting point of vision research, mathematics, computing science, and the application fields of image analy sis, computer vision, and artificial intelligence. The NATO Advanced Research Workshop "Shape in Picture" was organised with a twofold objective: first, it should provide all participants with an overview of relevant developments in these different disciplines; second, it should stimulate researchers to exchange original results and ideas across the boundaries of these disciplines. This book comprises a widely drawn selection of papers presented at the workshop, and many contributions have been revised to reflect further progress in the field. The focus of this collection is on mathematical approaches to the construction of shape descriptions from grey-level images. The book is divided into five parts, each devoted to a different discipline. Each part contains papers that have tutorial sections; these are intended to assist the reader in becoming acquainted with the variety of approaches to the problem.
Author: Vladimir I︠A︡kovlevich Katkovnik
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Computers
Languages : en
Pages : 584
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Book Description
This book deals with a wide class of novel and efficient adaptive signal processing techniques developed to restore signals from noisy and degraded observations. These signals include those acquired from still or video cameras, electron microscopes, radar, X-rays, or ultrasound devices, and are used for various purposes, including entertainment, medical, business, industrial, military, civil, security, and scientific. In many cases useful information and high quality must be extracted from the imaging. However, often raw signals are not directly suitable for this purpose and must be processed in some way. Such processing is called signal reconstruction. This book is devoted to a recent and original approach to signal reconstruction based on combining two independent ideas: local polynomial approximation and the intersection of confidence interval rule.
Author: Richard Escadafal
Publisher: IRD Orstom
ISBN:
Category : Geographic information systems
Languages : fr
Pages : 674
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Book Description
ISSS congress remote sensing
Author: Janine M. Benyus
Publisher: Harper Collins
ISBN: 0061958921
Category : Science
Languages : en
Pages : 324
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Book Description
Repackaged with a new afterword, this "valuable and entertaining" (New York Times Book Review) book explores how scientists are adapting nature's best ideas to solve tough 21st century problems. Biomimicry is rapidly transforming life on earth. Biomimics study nature's most successful ideas over the past 3.5 million years, and adapt them for human use. The results are revolutionizing how materials are invented and how we compute, heal ourselves, repair the environment, and feed the world. Janine Benyus takes readers into the lab and in the field with maverick thinkers as they: discover miracle drugs by watching what chimps eat when they're sick; learn how to create by watching spiders weave fibers; harness energy by examining how a leaf converts sunlight into fuel in trillionths of a second; and many more examples. Composed of stories of vision and invention, personalities and pipe dreams, Biomimicry is must reading for anyone interested in the shape of our future.
Author: Michel Gondran
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 680
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Book Description
Generalities about graphs. The shortest path problem in a graph. Path algebras. Trees and arborescences. Flows and transportation networks. Flows with gains. Multicommodity flows. Matchings and b-matchings. Eulerian and hamiltonian walks. Matroids. Non-polynomial problems. Branch and bound algorithms. Approximate algorithms. Linear programming. Integer linear programming. Lagrangean relaxation and solving the dual problem. Dynamic programming. Minimum ratio problems.
