Download or read book Discrete Geometry for Computer Imagery written by Ehoud Ahronovitz and published by Springer Science & Business Media. This book was released on 1997-11-19 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Workshop on Discrete Geometry for Computer Imagery, DGCI '97, held in Montpellier, France, in December 1997. The volume presents 17 revised full papers together with three invited full papers. The contributions are organized in sections on 2D recognition, discrete shapes and planes, surfaces, topology, features, and from principles to applications.
Download or read book Segmentation parallele d images volumiques written by Laurent Perroton and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SEGMENTATION PARALLELE D IMAGES VOLUMIQUES written by Laurent Perroton and published by . This book was released on 1994 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CETTE THESE, NOUS NOUS SOMMES INTERESSE A PLUSIEURS PROBLEMES LIES A L'IMAGERIE DISCRETE 3D D'UNE PART, ET A LA PARALLELISATION D'ALGORITHMES DE SEGMENTATION D'IMAGES D'AUTRES PART. DANS UNE PREMIERE PARTIE, DIVERS PROBLEMES D'IMAGERIE DISCRETE 3D SONT PRESENTES. L'APPROCHE DES COMPLEXES CELLULAIRES DONT L'OBJECTIF EST D'OFFRIR UNE MODELISATION COHERENTE EN IMAGERIE VOLUMIQUE DISCRETE EST INTRODUITE. UNE NOTION DE SURFACE DISCRETE COMPOSEE D'ELEMENTS BIDIMENSIONNELS DE L'ESPACE 3D EST RAPPELE. PLUSIEURS RESULTATS THEORIQUES SUR CE SUJET SONT RASSEMBLES DANS UN RAPPORT DE RECHERCHE FOURNI EN ANNEXE. LES PRINCIPAUX RESULTATS PERSONNELS SONT REPRIS DANS LA THESE: UNE EXTENSION AUX OBJETS 26-CONNEXES DE LA DEFINITION DES SURFACES DISCRETES QUI VERIFIE LA PROPRIETE FONDAMENTALE QU'IL EXISTE UNE SURFACE CONNECTEE ENTRE CHAQUE PAIR DE COMPOSANTE OBJET, COMPOSANTE DU FOND. ENFIN, ON PROPOSE EGALEMENT UN ALGORITHME D'EXTRACTION DE SURFACES SUR PRAM. DANS UNE DEUXIEME PARTIE, UNE BIBLIOGRAPHIE SUR LE SUJET DE LA SEGMENTATION D'IMAGE EST PRESENTEE. DES ALGORITHMES DE SEGMENTATION D'IMAGE PAR FUSION DE REGIONS SONT INTRODUITS, ET ON COMPARE DES ALGORITHMES A CARACTERES INTRINSEQUEMENT SEQUENTIELS ET PARALLELES EXISTANT. DANS CE CADRE LA, UNE ETUDE DE LA PARALLELISATION DE L'ETIQUETAGE EN COMPOSANTES CONNEXES DES IMAGES BINAIRES 3D EST PRESENTEE. UNE BIBLIOGRAPHIE DU SUJET DECRIS LES PRINCIPAUX ALGORITHMES SEQUENTIELS ET LES DIVERSES APPROCHES PARALLELES EXISTANTES. NOUS INTRODUISONS NOTRE CONTRIBUTION PERSONNELLE QUI EST UN ALGORITHME PARALLELE SUR HYPERCULE IPSC860. LA DERNIERE PARTIE DE LA THESE PRESENTE DIVERS OUTILS QUI ONT ETE DEVELOPPES POUR LA PARALLELISATION DU TRAITEMENT D'IMAGES VOLUMIQUES: LA LIBRAIRIE PPCM QUI DEFINIE UN STANDARD DE COMMUNICATION POUR DES MACHINES PARALLELES MIMD A MEMOIRE DISTRIBUEE ET UNE STRUCTURE DE DONNEE QUI INCLUE DES FONCTIONS D'EQUILIBRAGE DE CHARGES
Download or read book Variational and Level Set Methods in Image Segmentation written by Amar Mitiche and published by Springer Science & Business Media. This book was released on 2010-10-22 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Image segmentation consists of dividing an image domain into disjoint regions according to a characterization of the image within or in-between the regions. Therefore, segmenting an image is to divide its domain into relevant components. The efficient solution of the key problems in image segmentation promises to enable a rich array of useful applications. The current major application areas include robotics, medical image analysis, remote sensing, scene understanding, and image database retrieval. The subject of this book is image segmentation by variational methods with a focus on formulations which use closed regular plane curves to define the segmentation regions and on a level set implementation of the corresponding active curve evolution algorithms. Each method is developed from an objective functional which embeds constraints on both the image domain partition of the segmentation and the image data within or in-between the partition regions. The necessary conditions to optimize the objective functional are then derived and solved numerically. The book covers, within the active curve and level set formalism, the basic two-region segmentation methods, multiregion extensions, region merging, image modeling, and motion based segmentation. To treat various important classes of images, modeling investigates several parametric distributions such as the Gaussian, Gamma, Weibull, and Wishart. It also investigates non-parametric models. In motion segmentation, both optical flow and the movement of real three-dimensional objects are studied.
Download or read book A Parallel Framework for Image Segmentation Using Region Based Techniques written by Juan C. Pichel and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work a parallel framework for image segmentation using region based techniques is presented. The algorithm is based on performing several segmentations of the same image using a parallel region-based algorithm. Moreover these segmentations are also obtained in parallel. This way, our proposal presents a two-level parallel layout. Next, an oversegmented image that collects all the information from the previous segmentations is created. A region-merging algorithm, developed previously by the authors, is then applied to this oversegmented image. A relevant aspect is that the information obtained from the partial segmentations will, in fact, guide the merging process, in such a way that the actual characteristics of each region or pixel are not taken into account. The merging algorithm uses the concept of force of repulsion between neighboring pixels that indicates quantitatively their tendency to form part of different regions. The force of repulsion considers several situations in which any two neighboring pixels can be found in all the partial segmentations that are used to create the oversegmented image, including the shadowed zones. The shadowed zones are groups of pixels that differ in their intensity level a certain threshold from the region in which they could be included. Introducing this concept in the region-based algorithms, regions with low levels of homogeneity are avoided, improving the quality of the whole process. Note that, given that the shadowed zones are not treated by the algorithm, the information that can be extracted from these zones is minimum. As stopping criterion of the merging algorithm, we use a function to evaluate the quality of the segmentation. The algorithm has been validated using several artificial and real images demonstrating the benefits of our proposal, and it was tested on a HP Superdome cluster.
Download or read book Parallel Algorithms for Segmentation of Noisy Images written by Chee Sun Won and published by . This book was released on 1986 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parallel Techniques for High Level Image Segmentation Using the CLIP4 Computer written by and published by . This book was released on 1981 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parallel Front Propagation in Medical Image Segmentation written by Varduhi Yeghiazaryan and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Solution of Differential Equations by the Finite Element Method written by Anders Logg and published by Springer Science & Business Media. This book was released on 2012-02-24 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a tutorial written by researchers and developers behind the FEniCS Project and explores an advanced, expressive approach to the development of mathematical software. The presentation spans mathematical background, software design and the use of FEniCS in applications. Theoretical aspects are complemented with computer code which is available as free/open source software. The book begins with a special introductory tutorial for beginners. Following are chapters in Part I addressing fundamental aspects of the approach to automating the creation of finite element solvers. Chapters in Part II address the design and implementation of the FEnicS software. Chapters in Part III present the application of FEniCS to a wide range of applications, including fluid flow, solid mechanics, electromagnetics and geophysics.
Download or read book Advances in Image and Video Segmentation written by Zhang, Yu-Jin and published by IGI Global. This book was released on 2006-05-31 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book attempts to bring together a selection of the latest results of state-of-the art research in image and video segmentation, one of the most critical tasks of image and video analysis that has the objective of extracting information (represented by data) from an image or a sequence of images (video)"--Provided by publisher.
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.
Download or read book Solving PDEs in Python written by Hans Petter Langtangen and published by Springer. This book was released on 2017-03-21 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a concise and gentle introduction to finite element programming in Python based on the popular FEniCS software library. Using a series of examples, including the Poisson equation, the equations of linear elasticity, the incompressible Navier–Stokes equations, and systems of nonlinear advection–diffusion–reaction equations, it guides readers through the essential steps to quickly solving a PDE in FEniCS, such as how to define a finite variational problem, how to set boundary conditions, how to solve linear and nonlinear systems, and how to visualize solutions and structure finite element Python programs. This book is open access under a CC BY license.
Download or read book Computer Vision Virtual Reality and Robotics in Medicine written by Nicholas Ayache and published by Springer. This book was released on 2006-04-10 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the written contributions to the program of the First In ternational Conference on Computer Vision, Virtual Reality, and Robotics in Medicine (CVRMed'95) held in Nice during the period April 3-6, 1995. The articles are regrouped into a number of thematic sessions which cover the three major topics of the field: medical image understanding, registration problems in medicine, and therapy planning, simulation and control. The objective of the conference is not only to present the most innovative and promising research work but also to highlight research trends and to foster dialogues and debates among participants. This event was decided after a preliminary successful symposium organized in Stanford in March 1994 by E. Grimson (MIT), T. Kanade (CMU), R. Kikinis and W. Wells (Chair) (both at Harvard Medical School and Brigham and Women's Hospital), and myself (INRIA). We received 92 submitted full papers, and each one was evaluated by at least three members of the Program Committee, with the help of auxiliary reviewers. Based on these evaluations, a representative subset of the Program Committee met to select 19 long papers, 29 regular papers, and 27 posters. The geographical repartition of the contributions is the following: 24 from European countries (other than France), 23 contributions from France, 20 from Northern America (USA and Canada), and 8 from Asia (Japan and Singapore).
Download or read book Image Understanding written by Yujin Zhang and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-08-07 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This graduate textbook explains image reconstruction technologies based on region-based binocular and trinocular stereo vision, and object, pattern and relation matching. It further discusses principles and applications of multi-sensor fusion and content-based retrieval. Rich in examples and excises, the book concludes image engineering studies for electrical engineering and computer science students.
Download or read book Computational Fluid Dynamics written by Jiri Blazek and published by Elsevier. This book was released on 2005-12-20 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Fluid Dynamics (CFD) is an important design tool in engineering and also a substantial research tool in various physical sciences as well as in biology. The objective of this book is to provide university students with a solid foundation for understanding the numerical methods employed in today's CFD and to familiarise them with modern CFD codes by hands-on experience. It is also intended for engineers and scientists starting to work in the field of CFD or for those who apply CFD codes. Due to the detailed index, the text can serve as a reference handbook too. Each chapter includes an extensive bibliography, which provides an excellent basis for further studies.
Download or read book Soil Analysis written by J. Gautheyrou and published by CRC Press. This book was released on 2001-01-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.
Download or read book Medical image computing and computer assisted intervention written by Nicholas Ayache and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
