Download or read book Extractions de courbes et surfaces par m thodes de chemins minimaux et ensembles de niveaux written by Thomas Deschamps and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans cette these nous nous interessons a l'utilisation des méthodes de chemins minimaux et des méthodes de contours actifs par Ensembles de Niveaux, pour l'extraction de courbes et de surfaces dans des images medicales 3D. Dans un premier temps, nous nous sommes attaches a proposer un éventail varié de techniques d'extraction de chemins minimaux dans des images 2D et 3D, basees sur la résolution de l'équation Eikonal par l'algorithme du Fast Marching. Nous avons montre des resultats de ces techniques appliquees a des problèmes d'imagerie médicale concrets, notamment en construction de trajectoires 3D pour l'endoscopie virtuelle, et en segmentation interactive, avec possibilité d'apprentissage. Dans un deuxieme temps, nous nous sommes interessés a l'extraction de surfaces. Nous avons developpé un algorithme rapide de pré-segmentation, sur la base du formalisme des chemins minimaux. Nous avons étudié en détail la mise en place d'une collaboration entre cette méthode et celle des Ensembles de Niveaux, dont un des avantages communs est de ne pas avoir d'a priori sur la topologie de l'objet a segmenter. Cette méthode collaborative a ensuite ete testée sur des problèmes de segmentation et de visualisation de pathologies telles que les anevrismes cerebraux et les polypes du colon. Dans un troisième temps nous avons fusionné les résultats des deux premières parties pour obtenir l'extraction de surfaces, et des squelettes d'objets anatomiques tubulaires. Les squelettes des surfaces fournissent des trajectoires que nous utilisons pour déplacer des cameras virtuelles, et nous servent a definir les sections des objets lorsque nous voulons mesurer l'étendue d'une pathologie. La dernière partie regroupe des applications de ces méthodes a l'extraction de structures arborescentes. Nous étudions le cas des arbres vasculaires dans des images médicales 3D de produit de contraste, ainsi que le problème plus difficile de l'extraction de l'arbre bronchique sur des images scanners des poumons.
Download or read book Extractions de courbes et surfaces par m thodes de chemins minimaux et ensembles de niveaux applications en imagerie m dicale 3D written by Thomas Deschamps and published by . This book was released on 2001 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans cette these nous nous interessons a l'utilisation des méthodes de chemins minimaux et des méthodes de contours actifs par Ensembles de Niveaux, pour l'extraction de courbes et de surfaces dans des images medicales 3D. Dans un premier temps, nous nous sommes attaches a proposer un éventail varié de techniques d'extraction de chemins minimaux dans des images 2D et 3D, basees sur la résolution de l'équation Eikonal par l'algorithme du Fast Marching. Nous avons montre des resultats de ces techniques appliquees a des problèmes d'imagerie médicale concrets, notamment en construction de trajectoires 3D pour l'endoscopie virtuelle, et en segmentation interactive, avec possibilité d'apprentissage. Dans un deuxieme temps, nous nous sommes interessés a l'extraction de surfaces. Nous avons developpé un algorithme rapide de pré-segmentation, sur la base du formalisme des chemins minimaux. Nous avons étudié en détail la mise en place d'une collaboration entre cette méthode et celle des Ensembles de Niveaux, dont un des avantages communs est de ne pas avoir d'a priori sur la topologie de l'objet a segmenter. Cette méthode collaborative a ensuite ete testée sur des problèmes de segmentation et de visualisation de pathologies telles que les anevrismes cerebraux et les polypes du colon. Dans un troisième temps nous avons fusionné les résultats des deux premières parties pour obtenir l'extraction de surfaces, et des squelettes d'objets anatomiques tubulaires. Les squelettes des surfaces fournissent des trajectoires que nous utilisons pour déplacer des cameras virtuelles, et nous servent a definir les sections des objets lorsque nous voulons mesurer l'étendue d'une pathologie. La dernière partie regroupe des applications de ces méthodes a l'extraction de structures arborescentes. Nous étudions le cas des arbres vasculaires dans des images médicales 3D de produit de contraste, ainsi que le problème plus difficile de l'extraction de l'arbre bronchique sur des images scanners des poumons.
Download or read book Extraction de surfaces dans des images 3D et chemins minimaux written by Roberto Ardon and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Local Approximation Techniques in Signal and Image Processing written by Vladimir I︠A︡kovlevich Katkovnik and published by SPIE-International Society for Optical Engineering. This book was released on 2006 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Element of Hope written by Charles Hayter and published by McGill-Queen's Press - MQUP. This book was released on 2005 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A national study of the history of cancer in Canada.
Download or read book Geosimulation written by Itzhak Benenson and published by John Wiley & Sons. This book was released on 2004-08-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geosimulation is hailed as ‘the next big thing’ in geographic modelling for urban studies. This book presents readers with an overview of this new and innovative field by introducing the spatial modelling environment and describing the latest research and development using cellular automata and multi-agent systems. Extensive case studies and working code is available from an associated website which demonstrate the technicalities of geosimulation, and provide readers with the tools to carry out their own modelling and testing. The first book to treat urban geosimulation explicitly, integrating socio-economic and environmental modelling approaches Provides the reader with a sound theoretical base in the science of geosimulation as well as applied material on the construction of geosimulation models Cross-references to an author-maintained associated website with downloadable working code for readers to apply the models presented in the book Visit the Author's Website for further information on Geosimulation, Geographic Automata Systems and Geographic Automata Software http://www.geosimulationbook.com
Download or read book Film Theory written by Thomas Elsaesser and published by Routledge. This book was released on 2015-03-12 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is the relationship between cinema and spectator? This is the key question for film theory, and one that Thomas Elsaesser and Malte Hagener put at the center of their insightful and engaging book, now revised from its popular first edition. Every kind of cinema (and every film theory) first imagines an ideal spectator, and then maps certain dynamic interactions between the screen and the spectator’s mind, body and senses. Using seven distinctive configurations of spectator and screen that move progressively from ‘exterior’ to ‘interior’ relationships, the authors retrace the most important stages of film theory from its beginnings to the present—from neo-realist and modernist theories to psychoanalytic, ‘apparatus,’ phenomenological and cognitivist theories, and including recent cross-overs with philosophy and neurology. This new and updated edition of Film Theory: An Introduction through the Senses has been extensively revised and rewritten throughout, incorporating discussion of contemporary films like Her and Gravity, and including a greatly expanded final chapter, which brings film theory fully into the digital age.
Download or read book The Trace Factory written by Yves Jeanneret and published by John Wiley & Sons. This book was released on 2020-06-03 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collection and treatment of traces which reveal who we are and what we do naturally piques our interest when it pertains to others, and anxiety when it concerns ourselves. Do we truly know what a trace is? And if knowledge is power, how vulnerable are we in the public sphere? The demonstrability of a trace hides the complexity of the process that allows it to be produced, interpreted and used. This book proposes a reasoned approach to the analysis of the trace as an object and as a sign. By following such an approach, the reader will understand how the media participates in the creation and deployment of traces, and the issues raised by what can be traced on social media. The Trace Factory offers a historical perspective, returning to the founding theories of collecting and producing traces linked to knowledge and power in society. Observing technology and information through the prism of these theories, a large number of devices and their uses are evaluated. This book offers itself as a tool of thought and work for researchers, professionals and social actors of all kinds who are confronted with the existence, treatment and interpretation of the traces of society and culture.
Download or read book Inside the Gaze written by Francesco Casetti and published by Indiana University Press. This book was released on 1998 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: "... will add much to the repertoire of film scholarship... " --Choice This film theory classic brings semiotics and psychoanalytic concepts to bear on the film experience, to answer questions such as: In what way does film address its spectator? How does the film prefigure the spectator? Is the film aware of its orientation towards its spectator? And to what extent does it posit itself as the spectator's lead?
Download or read book Cultural Studies in the Digital Age written by William Nericcio and published by . This book was released on 2020-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An anthology of essays across the broad spectrum of cultural studies with an international lineup of scholars and semioticians from the United States and Italy. Fully illustrated in color with over 100 color plates.
Download or read book Virtual Geographic Environments written by Hui Lin and published by ESRI Press. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual Geographic Environments, edited by Hui Lin and Michael Batty, collects key papers that define the current momentum in GIS and "virtual geographies." Contributions by leading members of the geospatial community to Virtual Geographic Environments illustrate the cutting edge of GIScience, as well as new applications of GIS with the processing and delivery of geographic information through the Web and handheld devices, forming two major directions to these developments. The four-part organization leads from a primer on VGEs to virtual cities and landscapes, interface design and public participation, and finally mobile and networked VGEs. Current topics, such as crowd sourcing and related services, point to the development of new business models that merge proprietary and nonproprietary systems.
Download or read book Pandemic Media written by Philipp Dominik Keidl and published by Meson Press Eg. This book was released on 2021-01-23 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its unprecedented scale and consequences the COVID-19 pandemic has generated a variety of new configurations of media. Responding to demands for information, synchronization, regulation, and containment, these "pandemic media" reorder social interactions, spaces, and temporalities, thus contributing to a reconfiguration of media technologies and the cultures and polities with which they are entangled. Highlighting media's adaptability, malleability, and scalability under the conditions of a pandemic, the contributions to this volume track and analyze how media emerge, operate, and change in response to the global crisis and provide elements toward an understanding of the post-pandemic world to come.
Download or read book Varieties of Presence written by Alva Noë and published by Harvard University Press. This book was released on 2012-03-12 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world shows up for us—it is present in our thought and perception. But, as Alva Noë contends in his latest exploration of the problem of consciousness, it doesn’t show up for free. The world is not simply available; it is achieved rather than given. As with a painting in a gallery, the world has no meaning—no presence to be experienced—apart from our able engagement with it. We must show up, too, and bring along what knowledge and skills we’ve cultivated. This means that education, skills acquisition, and technology can expand the world’s availability to us and transform our consciousness. Although deeply philosophical, Varieties of Presence is nurtured by collaboration with scientists and artists. Cognitive science, dance, and performance art as well as Kant and Wittgenstein inform this literary and personal work of scholarship intended no less for artists and art theorists, psychologists, cognitive scientists, and anthropologists than for philosophers. Noë rejects the traditional representational theory of mind and its companion internalism, dismissing outright the notion that conceptual knowledge is radically distinct from other forms of practical ability or know-how. For him, perceptual presence and thought presence are species of the same genus. Both are varieties of exploration through which we achieve contact with the world. Forceful reflections on the nature of understanding, as well as substantial examination of the perceptual experience of pictures and what they depict or model are included in this far-ranging discussion.
Download or read book The Lumi re Galaxy written by Francesco Casetti and published by Columbia University Press. This book was released on 2015-03-03 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Francesco Casetti believes new media technologies are producing an exciting new era in cinema aesthetics. Whether we experience film in the theater, on our hand-held devices, in galleries and museums, onboard and in flight, or up in the clouds in the bits we download, cinema continues to alter our habits and excite our imaginations. Casetti travels from the remote corners of film history and theory to the most surprising sites on the internet and in our cities to prove the ongoing relevance of cinema. He does away with traditional notions of canon, repetition, apparatus, and spectatorship in favor of new keywords, including expansion, relocation, assemblage, and performance. The result is an innovative understanding of cinema's place in our lives and culture, along with a critical sea-change in the study of the art. The more the nature of cinema transforms, the more it discovers its own identity, and Casetti helps readers realize the galaxy of possibilities embedded in the medium.
Download or read book Digital Contagions written by Jussi Parikka and published by Peter Lang. This book was released on 2007 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital Contagions is the first book to offer a comprehensive and critical analysis of the culture and history of the computer virus phenomenon. The book maps the anomalies of network culture from the angles of security concerns, the biopolitics of digital systems, and the aspirations for artificial life in software. The genealogy of network culture is approached from the standpoint of accidents that are endemic to the digital media ecology. Viruses, worms, and other software objects are not, then, seen merely from the perspective of anti-virus research or practical security concerns, but as cultural and historical expressions that traverse a non-linear field from fiction to technical media, from net art to politics of software. Jussi Parikka mobilizes an extensive array of source materials and intertwines them with an inventive new materialist cultural analysis. Digital Contagions draws from the cultural theories of Gilles Deleuze and Félix Guattari, Friedrich Kittler, and Paul Virilio, among others, and offers novel insights into historical media analysis.
Download or read book Semiotics and Language written by Algirdas Julien Greimas and published by . This book was released on 1982 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cloning Terror written by W. J. T. Mitchell and published by University of Chicago Press. This book was released on 2011 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phrase 'War on Terror' has quietly been retired from official usage, but it persists in the American psyche, and our understanding of it is hardly complete. Exploring the role of verbal and visual images in the War on Terror, the author finds a conflict whose shaky metaphoric and imaginary conception has created its own reality.
