Download or read book Reconstruction de courbes et de surfaces 3D en stereo acquisition written by David Roussel (auteur(e) en sciences cognitives).) and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RECONSTRUCTION DE COURBES ET DE SURFACES 3D EN STEREO ACQUISITION written by DAVID.. ROUSSEL and published by . This book was released on 1999 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE S'INTERESSE A LA RECONSTRUCTION DES SURFACES D'OBJETS NON POLYEDRIQUES. DANS LE CONTEXTE D'UNE STEREO-ACQUISITION, NOUS FAISONS L'HYPOTHESE QUE LES CONTOURS APPARIES AU SEIN D'UNE PAIRE D'IMAGES DECRIVENT LES COURBES DE L'ESPACE LE LONG DESQUELLES LES SURFACES DES OBJETS POSSEDENT DES PLANS TANGENTS DISCONTINUS. IDEALEMENT, CES CONTOURS FORMENT DES CYCLES ET CHAQUE CYCLE ENFERME UNE REGION DE PIXELS QUI CORRESPOND DANS L'ESPACE A L'UNE DES SURFACES A RECONSTRUIRE. UNE TELLE SURFACE EST ELLE-MEME EN APPUI SUR UNE COURBE FERMEE DONT LA PROJECTION N'EST AUTRE QU'UN DES CYCLES DE CONTOURS. DANS CE CADRE, NOUS EXPOSONS PLUSIEURS PRINCIPES GEOMETRIQUES QUI PERMETTENT DE DETERMINER, PAR RAFFINEMENTS SUCCESSIFS, LA FORME DES SURFACES A L'INTERIEUR DE CHAQUE COURBE FERMEE PREALABLEMENT RECONSTRUITE. CES PRINCIPES PERMETTENT EN PARTICULIER DE COMBINER LA PHOTOMETRIE DES IMAGES AVEC LE MODELE D'ECLAIREMENT DIFFUS. LA TECHNIQUE DE RECONSTRUCTION SUR LAQUELLE NOUS AVONS TRAVAILLE CONSISTE A DEFINIR UNE SURFACE PARAMETRIQUE EN APPUI SUR UNE COURBE FERMEE GRACE A LA DEFINITION DES CONDITIONS AUX LIMITES DE CETTE SURFACE LE LONG DE LA COURBE SUR LAQUELLE ELLE S'APPUIE. NOTRE APPROCHE CONSISTE DONC A CONSTRUIRE DES ENSEMBLES DE COURBES FERMEES DANS L'ESPACE A PARTIR DE LA RECONSTRUCTION DES CONTOURS OBSERVES DANS LA PAIRE D'IMAGE. PUIS, D'UTILISER LA PHOTOMETRIE DES OBJETS DE LA SCENE POUR DETERMINER L'ORIENTATION DES SURFACES EN APPUI SUR LES COURBES FERMEES. APRES AVOIR CONSTRUIT UNE PREMIERE HYPOTHESE DE SURFACE A PARTIR DE CES CONDITIONS AUX LIMITES, CELLE-CI EST ENSUITE RAFFINEE PAR UNE NOUVELLE UTILISATION DU MODELE PHOTOMETRIQUE DE MANIERE A PRENDRE EN COMPTE LES OSCILLATIONS DE LA SURFACE EN DEHORS DU VOISINAGE IMMEDIAT DES COURBES FERMEES. LE MODELE GEOMETRIQUE ADOPTE, TANT DU POINT DE VUE DES CONCEPTS TOPOLOGIQUES QUE DE CELUI DU FORMALISME DE SURFACES LIBRES, AINSI QUE L'USAGE DE MODELES D'ECLAIREMENT SIMPLE ONT APPORTE A CETTE ETUDE UNE STRUCTURE POUR LES TRAITEMENTS RELATIFS A L'ANALYSE D'IMAGE NECESSAIRES A LA RECONSTRUCTION D'OBJETS. AINSI, LE PRINCIPE DE CETTE RECONSTRUCTION EST DE PROCEDER PAR DES ANALYSES LOCALES TANT AU NIVEAU DE L'UTILISATION DES CONTOURS QUE DE L'ANALYSE PHOTOMETRIQUE, CE QUI EVITE LES TRAITEMENTS GLOBAUX TELS QUE LA CORRELATION (POUR LA STEREO) OU LE SHAPE FROM SHADING (POUR L'ANALYSE PHOTOMETRIQUE).
Download or read book Proceedings written by and published by . This book was released on 1999 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spiral and Multislice Computed Tomography of the Body written by Mathias Prokop and published by Thieme. This book was released on 2011-01-01 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt: All you need to know to maximize the diagnostic capabilities of CT . . . Whole body computed tomography has developed at a rapid pace in the past decade, spurred on by the introduction of spiral and multislice scanning. These new technologies have not only improved diagnostic accuracy, but also made new applications possible that were previously accessible only through more complex or invasive techniques. This new book expertly fills a gap in the literature by combining the practically relevant technical background with the clinical information required for correctly performing and interpreting CT examinations. The book presents the state-of-the-art capabilities and requirements of CT as a key diagnostic and interventional tool, with special emphasis on the role of spiral and multi-slice CT. You will find a thorough introduction to CT technology from scanner design to 3D image reconstruction, useful practical hints on how to optimize your examination protocols and how to keep the radiation exposure of your patients to a minimum, as well as an extensive clinical section in which symptoms, pathology and CT morphology are integrated to provide you with the basis for subtle interpretation of CT findings using the most modern CT techniques. Highlights include: Full coverage of single-slice, 4-slice and 16-slice scanning techniques Introduction to extended CT applications including cardiac CT, CT fluoroscopy, and 3D image processing Organ-specific protocols for scanning and contrast administration Practical guidelines for maximizing image quality and minimizing radiation exposure Useful suggestions for image interpretation and for avoiding pitfalls and errors Convenient format by organ system and disease entity Full discussion of organ-specific pathology and CT morphology CT indications integrated with other imaging modalities At a time when CT examinations are becoming more technically demanding and complex, with an increasing number of scan parameters and advances in 3D reconstructions, this book is an essential professional tool. Experienced practitioners will find their diagnostic and technical skills improved by reading the book, and beginners will enjoy the clear, systematic approach that will help them use the technique with confidence.
Download or read book 1998 IEEE and ATR Workshop on Computer Vision for Virtual Reality Based Human Communications written by IEEE Computer Society and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1998 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at researchers, professors, practitioners, students and other computating specialists, these papers are taken from a workshop on computer vision for virtual reality based human communications.
Download or read book Stereotomy written by José Calvo-López and published by Springer Nature. This book was released on 2020-08-08 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the general concepts in stereotomy and its connection with descriptive geometry, the social background of its practitioners and theoreticians, the general methods and tools of this technology, and the specific procedures for the members built in hewn stone, including arches, squinches, stairs and vaults, ending with a chapter discussing the open problems in this field. Thus, it can be used as a reference book in the subject, but it can also read as a compelling narrative on this subject, one of the main branches of pre-industrial technology. Construction in hewn stone requires the use of geometrical methods and tools to assure that individual stones, either blocks or voussoirs, fit with one another and conform to the general shape of walls, arches or vaults. During the Late Middle Ages and the Renaissance, such techniques and instruments were developed empirically by masons and architects. Later on, learned mathematicians and engineers introduced refinements in these procedures and this branch of knowledge, known as stereotomy, furnished much material to descriptive geometry, a science born with the French Revolution which provided the foundation for projective geometry.
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 Computer Generated Images written by Nadia Magnenat-Thalmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research, development, and applications in computer graphics have dramatically expanded in recent years. Because of decreasing prices, superior hardware is now being used and image quality is better than ever. Many people now require image-synthesis techniques and software for their applicaions. Moreover, the techniques of computer ani mation have become very popular. In this book, we present a wide range of applications of computer graphics. This book is a collection of 44 papers in various areas of computer graphics selected from papers presented at Graphics Interface '85. Graphics Interface '85, held from May 27 to 31 in Montreal, was the first truly international computer graphics conference in Canada. This year, for the first time, the conference was presented jointly by the Com puter Graphics Society and the Canadian Man-Computer Communications Society. This new arrangement gave the conference international scope. The conference was spon sored by the Department of Communications in Ottawa, the Department of Science and Technology in Quebec, Supply and Services Canada, the Natural Sciences and Engineer ing Research Council of Canada, Hydro-Quebec, the "Association Canadienne Fran«aise pour I' Avancement des Sciences", and the Canadian Broadcasting Corpora tion. Graphics Interface '85 was organized by "1'Ecole des Hautes Etudes Commerciales" of the University of Montreal. Over 100 papers were submitted to the conference , but 64 were selected by the inter national program committee for presentation. This book contains new expanded versions of the papers.
Download or read book Fourier Descriptors and Their Applications in Biology written by Pete E. Lestrel and published by Cambridge University Press. This book was released on 1997-05-13 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the theory and the practice of using Fourier descriptors as a method for measuring the shape of whole, or parts of organisms.
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:
Download or read book Fields Medallists Lectures written by Michael Atiyah and published by World Scientific. This book was released on 1997-10-13 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the Fields Medal does not have the same public recognition as the Nobel Prizes, they share a similar intellectual standing. It is restricted to one field - that of mathematics - and an age limit of 40 has become an accepted tradition. Mathematics has in the main been interpreted as pure mathematics, and this is not so unreasonable since major contributions in some applied areas can be (and have been) recognized with Nobel Prizes. The restriction to 40 years is of marginal significance, since most mathematicians have made their mark long before this age.A list of Fields Medallists and their contributions provides a bird's eye view of mathematics over the past 60 years. It highlights the areas in which, at various times, greatest progress has been made. This volume does not pretend to be comprehensive, nor is it a historical document. On the other hand, it presents contributions from 22 Fields Medallists and so provides a highly interesting and varied picture.The contributions themselves represent the choice of the individual Medallists. In some cases the articles relate directly to the work for which the Fields Medals were awarded. In other cases new articles have been produced which relate to more current interests of the Medallists. This indicates that while Fields Medallists must be under 40 at the time of the award, their mathematical development goes well past this age. In fact the age limit of 40 was chosen so that young mathematicians would be encouraged in their future work.The Fields Medallists' Lectures is now available on CD-ROM. Sections can be accessed at the touch of a button, and similar topics grouped together using advanced keyword searches.
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 Radiation Dose from Adult and Pediatric Multidetector Computed Tomography written by D. Tack and published by Springer Science & Business Media. This book was released on 2007-12-31 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book considers in depth all the factors that influence the radiation dose and the risk associated with MDCT in children and adults. Only a small proportion of referring clinicians, radiologists, and technologists are aware of both the radiation risks and their underlying mechanisms. The book proposes detailed guidelines for optimization of the radiation dose when using MDCT. It is written by experts of international standing.
Download or read book Design and Modeling of Mechanical Systems III written by Mohamed Haddar and published by Springer. This book was released on 2017-11-25 with total page 1225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a collection of original peer-reviewed contributions presented at the 7th International Congress on Design and Modeling of Mechanical Systems (CMSM’2017), held in Hammamet, Tunisia, from the 27th to the 29th of March 2017. It reports on both research findings, innovative industrial applications and case studies concerning mechanical systems and related to modeling and analysis of materials and structures, multiphysics methods, nonlinear dynamics, fluid structure interaction and vibroacoustics, design and manufacturing engineering. Continuing on the tradition of the previous editions, this proceedings offers a broad overview on the state-of-the art in the field and a useful resource for academic and industry specialists active in the field of design and modeling of mechanical systems. CMSM’2017 was jointly organized by two leading Tunisian research laboratories: the Mechanical, Modeling and Manufacturing Laboratory of the National Engineering School of Sfax and the Mechanical Engineering Laboratory of the National Engineering School of Monastir..
Download or read book Diagrammatic Representation and Inference written by Alan Blackwell and published by Springer Science & Business Media. This book was released on 2004-03-12 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third International Conference, Diagrams 2004, held in Cambridge, UK, in March 2004. The 18 revised full papers and 42 revised poster papers presented together with a survey article and the abstracts of 2 posters were carefully reviewed and selected from a total of 91 submissions. The papers are organized in topical sections on fundamental issues, logical aspects of diagrammatic representation and reasoning, computational aspects of diagrammatic representation and reasoning, cognitive aspects of diagrammatic representation and reasoning, visualizing information with diagrams, diagrams in human-computer interaction, and diagrams in software engineering.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1993 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Digital Geometry written by Reinhard Klette and published by Morgan Kaufmann. This book was released on 2004-08-06 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book on digital geometry by the leaders in the field.
