Download or read book Une approche geometrique pour l analyse d une sequence d images monoculaires written by Djemaa Kachi-Akkouche and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Une approche g om trique pour l analyse d une s quence d images monoculaires written by Université de Technologie de Compiègne and published by . This book was released on 1996 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: La géométrie projective est un puissant formalisme à potentiel très riche pour l'analyse et la résolution des problèmes liés à la vision par ordinateur. Le travail réalisé s'inscrit dans le cadre de l'analyse d'une séquence d'images monoculaires obtenues par déplacements d'une caméra dans une scène polyédrique. Notre approche est une technique d'auto-calibration qui ne nécessite aucune connaissance a priori concernant la caméra et l'environnement dans lequel elle se déplace. Pour la mise en correspondance des segments de droites entre deux images d'une même séquence, nous avons adopté une méthode originale basée sur le calcul des invariants projectifs. Chaque segment de droite de l'image est représenté, de façon unique, par une paire de paramètres invariants. Ces paramètres sont inchangés par les différentes transformations projectives provoquées par le mouvement de la caméra. Nous rapportons ainsi le problème de l'appariement du plan image à l'espace des paramètres invariants. Par cette approche, nous montrons une réelle utilisation des invariants projectifs dans la résolution du problème de la mise en correspondance des segments de droites. Pour l'estimation des paramètres intrinsèques de la caméra ainsi que son mouvement, nous exposons dans un cadre projectif la correspondance entre les images d'un plan, qui est une simple homographie. Nous établissons, par la suite, une relation linéaire entre l'homographie et la matrice fondamentale. Cette matrice est directement liée aux caractéristiques et au mouvement de la caméra. D'un point de vue pratique, nous examinons des méthodes numériques permettant de calculer l'homographie et la matrice fondamentale à partir des primitives mises en correspondance. De nombreux résultats pratiques, simulations et exemples réels, complètent ce travail.
Download or read book VISION DYNAMIQUE MONOCULAIRE RECONSTRUCTION 3D ET INTERPRETATION written by JEAN-LUC.. JEZOUIN and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE PRESENTE UN CADRE METHODOLOGIQUE ET MATHEMATIQUE POUR L'ANALYSE D'UNE SEQUENCE MONOCULAIRE D'IMAGES OBSERVANT UNE SCENE RIGIDE. LA THESE EST CONSTITUEE DE TROIS PARTIES, CONSACREES (I) AU CALCUL DU MOUVEMENT A PARTIR DE DEUX VUES PERSPECTIVES ET LA TENTATIVE D'EXTENSION A UNE SEQUENCE D'IMAGES, (II) AU CALCUL DE LA STRUCTURE 3D DE LA SCENE PAR ANALYSE DYNAMIQUE DE LA SEQUENCE, EN SUPPOSANT LE MOUVEMENT CONNU AVEC UNE INCERTITUDE QUE L'ON SAIT MODELISER, ET (III) A L'UTILISATION DE LA STRUCTURE ESTIMEE POUR LA RECONNAISSANCE D'UN MODELE CAO DE LA SCENE EN 3D. LA PREMIERE PARTIE INTRODUIT DEUX NOUVELLES TECHNIQUES DE CALCUL DU MOUVEMENT ENTRE DEUX VUES PERSPECTIVES. PUIS ON FOURNIT DES EQUATIONS LINEAIRES DE PROPAGATION DES ERREURS D'ESTIMATION DES PARAMETRES DU MOUVEMENT. ON CONCLUT QUE CES APPROCHES D'ESTIMATION DU MOUVEMENT SONT MAL ADAPTEES A LA VISION DYNAMIQUE. ON ABORDE ENSUITE LA PROBLEMATIQUE DU PISTAGE DE PRIMITIVES DANS UNE SEQUENCE D'IMAGES. TROIS PISTEURS DIFFERENTS SONT DECRITS ET COMPARES, PARTANT DU SIMPLE FILTRE DE POURSUITE 2D POUR ABOUTIR A UN PISTAGE ENTIEREMENT 3D. UNE REPRESENTATION UNIFIEE DES PARAMETRISATIONS DES PRIMITIVES GEOMETRIQUES 2D ET 3D EST FOURNIE POUR LES POINTS, LES DROITES AFFINES, LES SEGMENTS LINEAIRES, ET LES COURBES POLYNOMIALES. ON ETUDIE ENFIN LA DENSIFICATION SPATIALE DES PRIMITIVES 3D EPARSES ESTIMEES. LA TROISIEME PARTIE DECRIT LA VALIDATION QUALITATIVE DE L'APPROCHE COMPLETE PAR LE BIAIS DE LA RECONNAISSANCE D'UN MODELE CAO DE LA SCENE. UNE VALIDATION QUANTITATIVE EST AUSSI FOURNIE, DEMONTRANT LA VALIDITE DES MODELES MATHEMATIQUES ET STATISTIQUES
Download or read book Analyse du mouvement et de la structure au sein de s quences d images monoculaires written by Bernard Giai-Checa and published by . This book was released on 1995 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE ANALYSE LE MOUVEMENT ET LA STRUCTURE A PARTIR D'UNE SEQUENCE D'IMAGES MONOCULAIRES. LA PRIMITIVE UTILISEE EST LE SEGMENT DE DROITE. CELUI-CI EST SUIVI AU COURS DE LA SEQUENCE EN UTILISANT DES FILTRES DE KALMAN. A PARTIR DU SUIVI DES SEGMENTS DE L'IMAGE NOUS CREONS ENSUITE UNE CARTE DE MOUVEMENT 2D, QUE NOUS ALLONS ENSUITE UTILISER POUR REALISER SUCCESSIVEMENT LA QUALIFICATION DU MOUVEMENT 3D, LA SEGMENTATION DE L'IMAGE EN REGIONS DE MEME MOUVEMENT ET LA RECONSTRUCTION 3D DE LA SCENE. POUR RENDRE PLUS ROBUSTE L'ALGORITHME DE RECONSTRUCTION, NOUS INTRODUISONS DES CONTRAINTES GEOMETRIQUES (PARALLELISME, VERTICALITE, ETC) AINSI QUE DES CONTRAINTES CINEMATIQUES (MOUVEMENT 3D DE LA CAMERA PARTIELLEMENT CONNU, PAR EXEMPLE). FINALEMENT, NOUS DEVELOPPONS LA NOTION DE SUIVEUR GENERIQUE, OU LE CODE C ASSOCIE A CHAQUE PRIMITIVE DE VISION EST AUTOMATIQUEMENT GENERE. CE TRAVAIL ILLUSTRE AINSI L'UTILITE DU MOUVEMENT DANS PLUSIEURS DOMAINES DE LA VISION PAR ORDINATEUR
Download or read book Critical Technologies Plan written by and published by . This book was released on 1989 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Immersion in the Visual Arts and Media written by and published by BRILL. This book was released on 2015-10-27 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking an interdisciplinary approach, this volume brings together contributions by distinguished experts from different disciplinary fields for a multidimensional view on immersion in the visual arts and media. In the current media debate, immersion has frequently been linked to the advent of digital technology and its capacity to provide vivid sensations of being placed in or surrounded by an artificial space. The idea of ‘liquidity’ contained in this promise to plunge into another world informs wide areas of contemporary cultural imagination, referring to a myriad of phenomena that relate to experiences of uncertainty and instability, of complexity and change. Considering the fact, however, that the idea of ‘liquid’ spaces appeared long before the digital creation of augmented or virtual environments, the contributors to this volume trace its reemerging throughout the history of the visual arts and media. By focusing on selected works of painting and architecture, photography and cinema, video installation and media art, they explore the variability of immersive experiences according to the different media environments and interfaces that constitute the actual sites of historically shifting relations between media and users. Contributors are: Matthias Bauer, Jörg von Brincken, Robin Curtis, Burcu Dogramaci, Thomas Elsaesser, Ole W. Fischer, Gundolf S. Freyermuth, Ursula Frohne, Henry Keazor, Matthias Krüger, Katja Kwastek, Fabienne Liptay, Karl Prümm, Martin Warnke.
Download or read book Visuality Materiality written by Divya P. Tolia-Kelly and published by Routledge. This book was released on 2016-02-11 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two of the key theoretical shifts over the past two decades of critical work have been the 'visual turn' and the 'material turn'. This book argues that these hitherto distinct fields should be understood as in continual dialogue and co-constitution and focuses on reconceptualising the visual as an embodied, material, and often politically-charged realm. This edited volume elaborates this conceptual argument through a series of contemporary case studies, drawn from the disciplines of Architecture, Sociology, Media Studies, Geography and Cultural Studies. The case studies included are paired around four themes: consumption, translation, practice and ethics. As well as exploring the bringing together of visuality and materiality studies, the contributors raise questions of social identity and social critique, and also focus on the ethics of material visualities.
Download or read book Virtual Voyages written by Jeffrey Ruoff and published by Duke University Press. This book was released on 2006-01-24 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: DIVThe different forms that travelogues have taken (documentaries, IMAX, home movies, ethnographic films) from the 1800s to the present./div
Download or read book Shivers Down Your Spine written by Alison Griffiths and published by Columbia University Press. This book was released on 2013-04-23 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the architectural spectacle of the medieval cathedral and the romantic sublime of the nineteenth-century panorama to the techno-fetishism of today's London Science Museum, humans have gained a deeper understanding of the natural world through highly illusionistic representations that engender new modes of seeing, listening, and thinking. What unites and defines many of these wondrous spaces is an immersive view-an invitation to step inside the virtual world of the image and become a part of its universe, if only for a short time. Since their inception, museums of science and natural history have mixed education and entertainment, often to incredible, eye-opening effect. Immersive spaces of visual display and modes of exhibition send "shivers" down our spines, engaging the distinct cognitive and embodied mapping skills we bring to spectacular architecture and illusionistic media. They also force us to reconsider traditional models of film spectatorship in the context of a mobile and interactive spectator. Through a series of detailed historical case studies, Alison Griffiths masterfully explores the uncanny and unforgettable visceral power of the medieval cathedral, the panorama, the planetarium, the IMAX theater, and the science museum. Examining these structures as exemplary spaces of immersion and interactivity, Griffiths reveals the sometimes surprising antecedents of modern media forms, suggesting the spectator's deep-seated desire to become immersed in a virtual world. Shivers Down Your Spine demonstrates how immersive and interactive museum display techniques such as large video displays, reconstructed environments, and touch-screen computer interactives have redefined the museum space, fueling the opposition between public and private, science and spectacle, civic and corporate interests, voice and text, and life and death. In her remarkable study of sensual spaces, Griffiths explains why, for centuries, we keep coming back for more.
Download or read book Jet Age Aesthetic written by Vanessa R. Schwartz and published by Yale University Press. This book was released on 2020-02-21 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: A stunning look at the profound impact of the jet plane on the mid-century aesthetic, from Disneyland to Life magazine Vanessa R. Schwartz engagingly presents the jet plane’s power to define a new age at a critical moment in the mid-20th century, arguing that the craft’s speed and smooth ride allowed people to imagine themselves living in the future. Exploring realms as diverse as airport architecture, theme park design, film, and photography, Schwartz argues that the jet created an aesthetic that circulated on the ground below. Visual and media culture, including Eero Saarinen’s airports, David Bailey’s photographs of the jet set, and Ernst Haas’s experiments in color photojournalism glamorized the imagery of motion. Drawing on unprecedented access to the archives of The Walt Disney Studios, Schwartz also examines the period’s most successful example of fluid motion meeting media culture: Disneyland. The park’s dedication to “people-moving” defined Walt Disney’s vision, shaping the very identity of the place. The jet age aesthetic laid the groundwork for our contemporary media culture, in which motion is so fluid that we can surf the internet while going nowhere at all.
Download or read book Fundamentals of Human Computer Interaction written by Andrew F. Monk and published by Academic Press. This book was released on 2014-06-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Human-Computer Interaction aims to sensitize the systems designer to the problems faced by the user of an interactive system. The book grew out of a course entitled ""The User Interface: Human Factors for Computer-based Systems"" which has been run annually at the University of York since 1981. This course has been attended primarily by systems managers from the computer industry. The book is organized into three parts. Part One focuses on the user as processor of information with studies on visual perception; extracting information from printed and electronically presented text; and human memory. Part Two on the use of behavioral data includes studies on how and when to collect behavioral data; and statistical evaluation of behavioral data. Part Three deals with user interfaces. The chapters in this section cover topics such as work station design, user interface design, and speech communication. It is hoped that this book will be read by systems engineers and managers concerned with the design of interactive systems as well as graduate and undergraduate computer science students. The book is also suitable as a tutorial text for certain courses for students of Psychology and Ergonomics.
Download or read book Mediarchy written by Yves Citton and published by John Wiley & Sons. This book was released on 2019-11-11 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: We think that we live in democracies: in fact, we live in mediarchies. Our political regimes are based less on nations or citizens than on audiences shaped by the media. We assume that our social and political destinies are shaped by the will of the people without realizing that ‘the people’ are always produced, both as individuals and as aggregates, by the media: we are all embedded in mediated publics, ‘intra-structured’ by the apparatuses of communication that govern our interactions. In this major book, Yves Citton maps out the new regime of experience, media and power that he designates by the term ‘mediarchy’. To understand mediarchy, we need to look both at the effects that the media have on us and also at the new forms of being and experience that they induce in us. We can never entirely escape from the effects of the mediarchies that operate through us but by becoming more aware of their conditioning, we can develop the new forms of political analysis and practice which are essential if we are to rise to the unprecedented challenges of our time. This comprehensive and far-reaching book will be essential reading for students and scholars in media and communications, politics and sociology, and it will be of great interest to anyone concerned about the multiple and complex ways that the media – from newspapers and TV to social media and the internet – shape our social, political and personal lives today.
Download or read book The Panorama written by Stephan Oettermann and published by . This book was released on 1997 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significance of panorama painting in the nineteenth century is frequently cited in contemporary debates about visuality and the emergence of the modern spectator. Stephan Oettermann's The Panorama is the first major historical study to appear in English of the rich phenomenon of the panorama, one of the most influential forms of visual entertainment in the nineteenth century. In this richly illustrated book Oettermann gives readers a concrete sense of the structural and experiential reality of the panorama, and the many forms it took throughout Europe and North America--a crucial task given that very few of the original nineteenth-century panoramas survive. At the same time, he outlines the many ways in which these remarkable and often immense 360-degree images were part of a larger transformation of the status of the observer and of popular culture. Thus, the panorama is treated not only as a new kind of image but also as an architectural and informational component of the new urban spaces and media networks.
Download or read book A Reader in Themed and Immersive Spaces written by Scott A. Lukas and published by Lulu.com. This book was released on 2016 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Themed spaces have, at their foundation, an overarching narrative, symbolic complex, or story that drives the overall context of their spaces. Theming, in some very unique ways, has expanded beyond previous stereotypes and oversimplifications of culture and place to now consider new and often controversial topics, themes, and storylines."--Publisher's website.
Download or read book The Themed Space written by Scott A. Lukas and published by Lexington Books. This book was released on 2007-10-07 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Themed Space: Locating Culture, Nation, and Self is the first edited collection focused on the significance of the theme space. The first section of the text discusses the ways in which theming acts as a form of authenticity. Included are articles on the theme park Dollywood, the historic Coney Island, the uses of theming in Flagstaff, Arizona, and the Las Vegas Strip. Section two considers theming as a reflection of nation, and its authors focus on Chinese theme parks and shopping malls, the Lost City theme park in South Africa, and the Ain Diab resort district in Casablanca. The third section of the book illustrates how theming often targets the person—whether famous or everyday. The authors look at spaces ranging from the Liverpool John Lennon Airport, love hotels in Japan, and the Houston, Texas theme park AstroWorld. The final section emphasizes theming as a projection of the mind and psychology. The authors focus on behind-the-scenes tourism at Universal Studios and the Ford Rouge Factory Tour, the use of theming in unexpected spaces like Florida themed clinics, theming in virtual reality spaces of video games, and the social controversies related to theming in various parts of the world. The book includes a comprehensive bibliography on theming and a list of key terms. The Themed Space is of great interest to students of all levels and scholars of anthropology, urban studies and sociology.
Download or read book Theme Park Design the Art of Themed Entertainment written by David Younger and published by David Younger. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theme Park Design & The Art of Themed Entertainment aims to be the most in-depth book on theme park design ever written, documenting for professional designers, theme park design students, and curious theme park fans, the fascinating processes and techniques that go into creating the amazing worlds of theme park design.
Download or read book Dawn of the New Everything written by Jaron Lanier and published by Arrow. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The father of virtual reality explains its dazzling possibilities by reflecting on his own lifelong relationship with technology. Bridging the gap between tech mania and the experience of being inside the human body, Jaron Lanier has written a three-pronged adventure into 'virtual reality', by exposing its ability to illuminate and amplify our understanding of our species.
