Download or read book Analyse et surveillance des objets en mouvement dans les sc nes dynamiques written by Youfu Wu and published by . This book was released on 2005 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire traite de l'analyse et la surveillance des objets mobiles dans les scènes dynamiques à partir de séquences d'images afin d'automatiser l'analyse et la surveillance des activités se déroulant dans une scène donnée. Le capteur utilisé est une caméra monoculaire fixe, les scènes sont d'intérieur ou d'extérieur et les objets mobiles sont principalement des êtres humains et des véhicules. L'objectif de nos travaux est d'abord de détecter des objets mobiles des séquences d'images puis, de les suivre; une analyse des comportements dynamiques est alors effectuée. Nous illustrons nos propos par des applications de vidéo surveillance, telles que la surveillance de trafic, etc. Dans ce but, nous proposons un processus d'analyse de séquences d'images basé sur les tâches principales suivantes : (1) Pré-traitement des images à l'aide des moments orthogonaux temporels de Gauss-Hermite ou les modèles multi-gaussiens; (2) Segmentation des régions en mouvement par une méthode de relaxation floue, et analyse des mouvements des objets mobiles à partir des régions suivies et reconnaissance des scénarios relatifs; et (3) Reconstruction 3D des objets en mouvement ; pour ce faire, l'appariement de points caractéristiques et le calibrage automatique de caméras sont étudiés. Des résultats expérimentaux valident les approches proposées.
Download or read book Analyse de sc nes dynamiques written by Éric Deléchelle and published by . This book was released on 1997 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES TRAVAUX PRESENTES DANS CETTE THESE PORTENT SUR LE PROBLEME DE LA DETECTION DU MOUVEMENT DANS LES SEQUENCES D'IMAGES. ILS SONT DIVISES EN QUATRE PARTIES. DANS UN PREMIER TEMPS, LES IMAGES SONT SUPPOSEES AVOIR ETE ACQUISES A PARTIR D'UN CAPTEUR FIXE. UN ALGORITHME ELABORE AUTOUR D'UN MODELE D'INTERACTION ELECTRIQUE NOUS PERMET DE DEFINIR UNE MESURE DE LA VRAISEMBLANCE D'APPARTENANCE D'UN POINT A UNE REGION EN MOUVEMENT. L'INITIALISATION S'OPERANT A L'AIDE DE LA DIFFERENCE DE DEUX IMAGES, L'INFORMATION EST TROP PAUVRE POUR OBTENIR DES MASQUES COMPLETS. LE VOLUME SPATIO-TEMPOREL, DEFINI PAR PLUSIEURS DIFFERENCES D'IMAGES CONSECUTIVES, NOUS A NATURELLEMENT CONDUIT A ETENDRE LE MODELE 2D INITIAL A UNE DISTRIBUTION VOLUMIQUE DE CHARGES. LA DETECTION S'EN TROUVE AMELIOREE TANT EN CE QUI CONCERNE LA DEFINITION DES MASQUES QUE L'ELIMINATION DU BRUIT. CETTE INTEGRATION TEMPORELLE DES OBSERVATIONS EST NEANMOINS INSUFFISANTE DANS LE CAS D'OBJETS MOBILES PRESENTANT DES DIMENSIONS RELATIVEMENT GRANDES AINSI QU'UNE CERTAINE UNIFORMITE. UNE SOLUTION POSSIBLE CONSISTE ALORS A INTEGRER L'APPROCHE DANS UN CONTEXTE DE MULTIRESOLUTION SPATIALE. LA SEQUENCE D'IMAGES EST REPRESENTEE SOUS FORME D'UNE STRUCTURE HIERARCHIQUE CONSTRUITE EN REALISANT LE FILTRAGE ET LE SOUS-ECHANTILLONAGE EN SERIE DES IMAGES INITIALES. CETTE REPRESENTATION AMELIORE LES PERFORMANCES DE L'ALGORITHME EN CE QUI CONCERNE LA DETECTION DES OBJETS PEU TEXTURES DE GRANDES DIMENSIONS. LA DECOMPOSITION SPATIALE PEUT ETRE ETENDUE A UNE DECOMPOSITION SPATIO-TEMPORELLE. LE FILTRAGE ET LE SOUS-ECHANTILLONNAGE SUIVANT L'AXE DES TEMPS EST EGALEMENT REALISE. CETTE DECOMPOSITION EXTREME PERMET D'AMELIORER LA DETECTION DANS LES SITUATIONS LES PLUS CRITIQUES, OU LES OBJETS DE GRANDES DIMENSIONS ET PEU TEXTURES SONT ANIMES DE MOUVEMENTS LENTS. DANS LE CAS DES SYSTEMES DE SURVEILLANCE EMBARQUES, LA FIXITE DU CAPTEUR N'EST PAS TOUJOURS OBSERVEE. LE MOUVEMENT APPARENT, INDUIT PAR LE DEPLACEMENT DU CAPTEUR, AFFECTE L'ENSEMBLE DES COMPOSANTES DES IMAGES. NOUS AVONS FINALEMENT ETUDIE L'INTEGRATION DE L'ALGORITHME DE DETECTION STATIQUE DANS UNE PROCEDURE DE COMPENSATION DU MOUVEMENT APPARENT. LES OPERATIONS DE COMPENSATION ET DE DETECTION SONT REALISEES CONJOINTEMENT. LES PREMIERS RESULTATS, OBTENUS SUR DES SEQUENCES REELLES, SEMBLENT PROMETTEURS.
Download or read book D tection et suivi d objets en mouvement dans des sc nes complexes written by Aurélie Bugeau and published by . This book was released on 2007 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: De nombreuses applications en vision par ordinateur nécessitent la détection et le suivi d'objets en mouvement dans une séquence d'images. Le but de cette thèse est de détecter et suivre les objets mobiles dans des séquences ayant un fond dynamique, avec de forts changements d'illumination, de faibles contrastes et éventuellement acquises par une caméra mobile. Cette thèse est décomposée en deux parties. Dans la première, une méthode de détection est proposée. Elle repose sur la définition d'une grille de points décrits par leur mouvement et leur photométrie. Ces points sont ensuite regroupés en "clusters en mouvement" avec un algorithme mean shift à noyau variable et une méthode de sélection automatique de la taille des noyaux. La deuxième partie propose une méthode de suivi combinant des distributions de couleur et de mouvement, la prédiction de l'objet et des observations extérieures (pouvant être les clusters en mouvement) dans une fonction d'énergie minimisée par coupe minimale/flot maximal dans un graphe.
Download or read book CONTRIBUTION ALGORITHMIQUE A LA CONCEPTION D UN SYSTEME INTEGRE D ANALYSE TEMPS REEL DE SCENES DYNAMIQUES written by Jean-Yves Dufour and published by . This book was released on 1988 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: DEUX PROBLEMES DE L'ANALYSE DE SCENE ONT ETE ETUDIES: LA RECONNAISSANCE AUTOMATIQUE D'OBJETS ET L'ANALYSE TEMPORELLE DES IMAGES FOURNIES PAR LE SENSEUR. EN CE QUI CONCERNE LA RECONNAISSANCE D'OBJETS, L'INTERET A ETE PORTE SUR L'ASPECT "DECISION" DU PROBLEME. POUR LA PARTIE ANALYSE TEMPORELLE LES TRAVAUX ONT ETE CONSACRES A LA CONCEPTION D'UN MODULE DE RECALAGE D'IMAGES
Download or read book 4th symposium Transport and air pollution anglais written by Robert Joumard and published by . This book was released on 1997 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book African Conflicts and Informal Power written by Mats Utas and published by Zed Books Ltd.. This book was released on 2012-09-13 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the aftermath of an armed conflict in Africa, the international community both produces and demands from local partners a variety of blueprints for reconstructing state and society. The aim is to re-formalize the state after what is viewed as a period of fragmentation. In reality, African economies and polities are very much informal in character, with informal actors, including so-called Big Men, often using their positions in the formal structure as a means to reach their own goals. Through a variety of in-depth case studies, including the DRC, Sierra Leone and Liberia, this comprehensive volume shows how important informal political and economic networks are in many of the continent’s conflict areas. Moreover, it demonstrates that without a proper understanding of the impact of these networks, attempts to formalize African states, particularly those emerging from wars, will be in vain.
Download or read book The View from the Road written by Donald Appleyard and published by . This book was released on 1966 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boundary Objects and Beyond written by Geoffrey C. Bowker and published by MIT Press. This book was released on 2016-02-26 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The multifaceted work of the late Susan Leigh Star is explored through a selection of her writings and essays by friends and colleagues. Susan Leigh Star (1954–2010) was one of the most influential science studies scholars of the last several decades. In her work, Star highlighted the messy practices of discovering science, asking hard questions about the marginalizing as well as the liberating powers of science and technology. In the landmark work Sorting Things Out, Star and Geoffrey Bowker revealed the social and ethical histories that are deeply embedded in classification systems. Star's most celebrated concept was the notion of boundary objects: representational forms—things or theories—that can be shared between different communities, with each holding its own understanding of the representation. Unfortunately, Leigh was unable to complete a work on the poetics of infrastructure that further developed the full range of her work. This volume collects articles by Star that set out some of her thinking on boundary objects, marginality, and infrastructure, together with essays by friends and colleagues from a range of disciplines—from philosophy of science to organization science—that testify to the wide-ranging influence of Star's work. Contributors Ellen Balka, Eevi E. Beck, Dick Boland, Geoffrey C. Bowker, Janet Ceja Alcalá, Adele E. Clarke, Les Gasser, James R. Griesemer, Gail Hornstein, John Leslie King, Cheris Kramarae, Maria Puig de la Bellacasa, Karen Ruhleder, Kjeld Schmidt, Brian Cantwell Smith, Susan Leigh Star, Anselm L. Strauss, Jane Summerton, Stefan Timmermans, Helen Verran, Nina Wakeford, Jutta Weber
Download or read book Leaving Parnassus written by Seth Adam Whidden and published by Rodopi. This book was released on 2007 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leaving Parnassus: The Lyric Subject in Verlaine and Rimbaud considers how the crisis of the lyric subject in the middle of the nineteenth century in France is a direct response to the aesthetic principles of Parnassian poetry, which dominated the second half of the century much more than critics often think. The poets considered here rebel against the strict confines of traditional and contemporary poetry and attempt to create radically new discursive practices. Specifically, the close readings of poems apply recent studies of subjectivity in poetry and focus on the works of Paul Verlaine and Arthur Rimbaud to see how each subverts the dominant tradition of French poetry in a unique way. Whereas previous studies considered isolated aspects of each poet's lyric subject, Leaving Parnassus shows that the situation of the lyric is a source of subversion throughout the poets' entire work, and as such it is crucial to our full understanding of their respective innovations.
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Download or read book The Planetarium written by Nathalie Sarraute and published by Deep Vellum Publishing. This book was released on 2023-01-31 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: A young writer has his heart set on his aunt's large apartment. With this seemingly simple conceit, the characters of The Planetarium are set in orbit and a galaxy of argument, resentment, and bitterness erupts. Telling the story from various points of view, Sarraute focuses below the surface, on the emotional lives of the characters in a way that surpasses even Virginia Woolf. Always deeply engaging, The Planetarium reveals the deep disparity between the way we see ourselves and the way others see us.
Download or read book Invention of Hysteria written by Georges Didi-Huberman and published by MIT Press. This book was released on 2004-09-17 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first English-language publication of a classic French book on the relationship between the development of photography and of the medical category of hysteria. In this classic of French cultural studies, Georges Didi-Huberman traces the intimate and reciprocal relationship between the disciplines of psychiatry and photography in the late nineteenth century. Focusing on the immense photographic output of the Salpetriere hospital, the notorious Parisian asylum for insane and incurable women, Didi-Huberman shows the crucial role played by photography in the invention of the category of hysteria. Under the direction of the medical teacher and clinician Jean-Martin Charcot, the inmates of Salpetriere identified as hysterics were methodically photographed, providing skeptical colleagues with visual proof of hysteria's specific form. These images, many of which appear in this book, provided the materials for the multivolume album Iconographie photographique de la Salpetriere. As Didi-Huberman shows, these photographs were far from simply objective documentation. The subjects were required to portray their hysterical "type"—they performed their own hysteria. Bribed by the special status they enjoyed in the purgatory of experimentation and threatened with transfer back to the inferno of the incurables, the women patiently posed for the photographs and submitted to presentations of hysterical attacks before the crowds that gathered for Charcot's "Tuesday Lectures." Charcot did not stop at voyeuristic observation. Through techniques such as hypnosis, electroshock therapy, and genital manipulation, he instigated the hysterical symptoms in his patients, eventually giving rise to hatred and resistance on their part. Didi-Huberman follows this path from complicity to antipathy in one of Charcot's favorite "cases," that of Augustine, whose image crops up again and again in the Iconographie. Augustine's virtuosic performance of hysteria ultimately became one of self-sacrifice, seen in pictures of ecstasy, crucifixion, and silent cries.
Download or read book Divine Names on the Spot written by Fabio Porzia and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Ancient Greek and Semitic languages resorted to a large range of words to name the divine. Gods and goddesses were called by a variety of names and combinations of onomastic attributes. This broad lexicon of names is characterised by plurality and a tendency to build on different sequences of names; therefore, the Mapping Ancient Polytheisms project focuses on the process of naming the divine in order to better understand the ancient divine in terms of a plurality in the making. A fundamental rule for reading ancient divine names is to grasp them in their context - time and place, a ritual, the form of the discourse, a cultural milieu...: a deity is usually named according to a specific situation. From Artemis Eulochia to al-Lat, al-'Uzza and Manat, from Melqart to "my rock" in the biblical book of Psalms, this volume journeys between the sanctuary on Mount Gerizim and late antique magical practices, revisiting rituals, hymnic poetry, oaths of orators and philosophical prayers. While targeting different names in different contexts, the contributors draft theoretical propositions towards a dynamic approach of naming the divine in antiquity.'
Download or read book Photography and Anthropology written by Christopher Pinney and published by Reaktion Books. This book was released on 2012 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photography and anthropology share strikingly parallel histories. Christopher Pinney's provocative and eminently readable account provides a polemical narrative of anthropologists' use of photography from the 1840s to the present. Walter Benjamin suggested that photography 'make[s] the difference between technology and magic visible as a thoroughly historical variable, ' and Pinney here explores photography as a divinatory practice. Though viewed as modern and rational, this quality of photography in fact propelled anthropologists towards the 'primitive' lives of those they studied. Early anthropology celebrated photography as a physical record, whose authority and permanence promised an escape from the lack of certainty in speech. For later anthropologists, this same quality became grounds to critique an imaging practice that failed to capture movement and process. But throughout these twists and turns, anthropology as a practice of 'being there' has found itself entwined in an intimate engagement with photography as metaphor for the collection of evidence. Photography and Anthropology reveals how anthropology provides the tools to re-imagine the power and magic of all photographic practices. It presents both a history of anthropology's seduction by photography and the anthropological theory of photography. This thoroughly researched book draws upon an intimate knowledge of the history of anthropology, photography and the world's major anthropological practitioners.
Download or read book Historical Seismology written by Julien Fréchet and published by Springer Science & Business Media. This book was released on 2008-08-22 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern seismology has faced new challenges in the study of earthquakes and their physical characteristics. This volume is dedicated to the use of new approaches and presents a state-of-the-art in historical seismology. Selected historical and recent earthquakes are chosen to document and constrain related seismic parameters using updated methodologies in the macroseismic analysis, field observations of damage distribution and tectonic effects, and modelling of seismic waveforms.
Download or read book PROMOTION DE LA SANTE ET AUTONOMISATION DANS LE CONTEXTE AFRICAIN written by David HouŽto and published by Lulu.com. This book was released on 2014-02-26 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le terme promotion de la santé en Afrique, près de 30 ans après l'adoption de la Charte d'Ottawa, continue d'avoir des connotations complètement hors du sens que lui confère cette charte. Cela n'est pas étonnant quand on sait que la notion de santé dans ce contexte africain équivaut à la lutte contre la maladie à travers les soins de santé dispensés par des professionnels de la santé dans des formations sanitaires et les hôpitaux. L'évolution que connait le continent depuis quelques décennies est de donner un peu plus de place à la communauté à travers les relais communautaires dans une participation communautaire vidée de son contenu, car le pouvoir n'est jamais passé entre les mains des communautés.C'est au vu de tout ceci que le présent ouvrage à sa raison d'être pour expliquer les fondements de l'autonomisation communautaire et de la promotion de la santé avec leur importance pour la région africaine en proie aux mauvais indicateurs de santé comparativement aux autres régions du monde.
Download or read book Pantomime written by Karl Toepfer and published by Vosuri Media. This book was released on 2019-08-19 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers perhaps the most comprehensive history of pantomime ever written. No other book so thoroughly examines the varieties of pantomimic performance from the early Roman Empire, when the term “pantomime” came into use, until the present. After thoroughly examining the complexities and startlingly imaginative performance strategies of Roman pantomime, the author identifies the peculiar political circumstances that revived and shaped pantomime in France and Austria in the eighteenth century, leading to the Pierrot obsession in the nineteenth century. Modernist aesthetics awakened a huge, highly diverse fascination with pantomime. The book explores an extraordinary variety of modernist and postmodern approaches to pantomime in Germany, Austria, France, numerous countries of Eastern Europe, Russia, Scandinavia, Spain, Belgium, The Netherlands, Chile, England, and The United States. Making use of many performance and historical documents never before included in pantomime histories, the book also discusses pantomime’s messy relation to dance, its peculiar uses of music, its “modernization” through silent film aesthetics, and the extent to which writers, performers, or directors are “authors” of pantomimes. Just as importantly, the book explains why, more than any other performance medium, pantomime allows the spectator to see the body as the agent of narrative action.
