Perception Multi Capteur Et Analyse De Scenes Dynamiques

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Contribution à l'interprétation de scènes vastes par une approche multi-capteurs

Author : Olivier Wallart
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis Contribution à l'interprétation de scènes vastes par une approche multi-capteurs by : Olivier Wallart

Download or read book Contribution à l'interprétation de scènes vastes par une approche multi-capteurs written by Olivier Wallart and published by . This book was released on 2002 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail présente l'architecture d'un système de perception distribuée. Des modules de vision constitués de caméras et d'unités de traitement analysent la scène selon des points de vue distincts et sans recouvrement. Les objectifs du système d'interprétation globale sont la classification et le suivi global des objets dans les scènes autoroutières. Le suivi global est réalisé par l'intermédiaire d'une ré-identification des objets perçus par plusieurs caméras. Les difficultés du système d'interprétation concernent la gestion des erreurs lors de l'identification des objets d'une part, mais également les contraintes temps réel que le système doit respecter. La gestion des erreurs est prise en charge par un raisonnement approximatif basé sur la théorie des possibilités et les aspects temps réel du système sont gérés par un raisonnement distribué et temporel. Deux algorithmes d'association liés à des contextes d'utilisation différents sont développés. L'approche par la programmation dynamique traite l'association en tenant compte d'un ensemble d'objet attendu au niveau de chaque module de vision. Le deuxième algorithme utilisant une approche de fusion temporelle multi-capteurs pour la surveillance prolonge les raisonnements approximatifs et temporels en gérant dans le temps la qualité des décisions.

Analyse d'une scène dynamique avec une caméra en mouvement

Author : Christine Hennebert
Publisher :
ISBN 13 :
Total Pages : 247 pages
Book Rating : 4.:/5 (49 download)

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Book Synopsis Analyse d'une scène dynamique avec une caméra en mouvement by : Christine Hennebert

Download or read book Analyse d'une scène dynamique avec une caméra en mouvement written by Christine Hennebert and published by . This book was released on 1996 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE TRAITE DE LA DETECTION D'OBJETS MOBILES DANS DES SEQUENCES D'IMAGES MONOCULAIRES ACQUISES A L'AIDE D'UN CAPTEUR EN MOUVEMENT. NOUS PROPOSONS UNE METHODOLOGIE DEDIEE A LA DETECTION DE PETITS OBJETS MOBILES DANS DES IMAGES DE SCENES EXTERIEURES REELLES DANS LE DOMAINE VISIBLE OU INFRAROUGE. DE FACON A POUVOIR DETECTER DES OBJETS DE TRES FAIBLE VITESSE APPARENTE, NOUS PRIVILEGIONS UNE ANALYSE DE L'INFORMATION SUR UN INTERVALLE TEMPOREL ETENDU. NOUS AVONS FAIT LE CHOIX DE COMPENSER LE MOUVEMENT APPARENT DOMINANT DU AU DEPLACEMENT DU CAPTEUR POUR PLUSIEURS IMAGES CONSECUTIVES DANS LE BUT DE FORMER UNE SOUS-SEQUENCE DE QUELQUES IMAGES DANS LAQUELLE LE CAPTEUR SEMBLE VIRTUELLEMENT FIXE. NOUS AVONS EGALEMENT DEVELOPPE UNE TECHNIQUE DE STRUCTURATION D'UNE SCENE EXTERIEURE SELON SES DIFFERENTS PLANS DE PROFONDEUR POUR TRAITER LES CAS OU LE MOUVEMENT 2D DU AU DEPLACEMENTE DU CAPTEUR NE PEUT PAS ETRE GLOBALEMENT MODELISE ET COMPENSE. CETTE ETAPE DE SEGMENTATION S'APPUIE SUR UNE MODELISATION HIERARCHIQUE A DEUX NIVEAUX DE MODELES, L'UN LOCAL (NIVEAU PIXEL) ET L'AUTRE GLOBAL (NIVEAU REGION). UNE DECOMPOSITION TEMPORELLE ADEQUATE EST ENSUITE UTILISEE POUR RENFORCER LE SIGNAL CORRESPONDANT AUX OBJETS EN MOUVEMENT DANS LA SOUS-SEQUENCE D'IMAGES. LE PROBLEME DE LA DETECTION DES OBJETS MOBILES EST FORMULE COMME UN PROBLEME D'ETIQUETAGE IMPLIQUANT UNE REGULARISATION STATISTIQUE A L'AIDE DE CHAMPS DE MARKOV. CE CADRE PERMET DE TRADUIRE DES CONNAISSANCES A PRIORI CONTEXTUELLES SUR LES PRIMITIVES CORRESPONDANT AUX OBJETS MOBILES A DETECTER. L'ENSEMBLE DE NOTRE METHODE A ETE EVALUE ET VALIDE SUR DES SEQUENCES D'IMAGES VARIEES, REPRESENTATIVES DE NOMBREUSES SITUATIONS REELLES COMPLEXES

Analyse et surveillance des objets en mouvement dans les scènes dynamiques

Author : Youfu Wu
Publisher :
ISBN 13 :
Total Pages : 203 pages
Book Rating : 4.:/5 (69 download)

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Book Synopsis Analyse et surveillance des objets en mouvement dans les scènes dynamiques by : Youfu Wu

Download or read book Analyse et surveillance des objets en mouvement dans les scènes 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.

Contribution à la fusion d'informations par filtrage non-linéaire

Author : Christophe Boucher
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (491 download)

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Book Synopsis Contribution à la fusion d'informations par filtrage non-linéaire by : Christophe Boucher

Download or read book Contribution à la fusion d'informations par filtrage non-linéaire written by Christophe Boucher and published by . This book was released on 2000 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse s’inscrit dans le cadre de l’utilisation du filtrage non –linéaire pour la fusion d’informations. On cherche notamment à identifier le mouvement et la structure 3D des objets d’une scène vue par un système de perception multi-capteurs. La dynamique est décrite par un modèle affiné dont les paramètres sont inconnus et la primitive utilisée est le segment de droite. On a tout d’abord estimé les caractéristiques de structure et de mouvement à partir des projections 2D de la scène. L’utilisation de la représentation de Plücker a permis de remonter aux informations souhaitées à partir de séquences d’images monoculaires et de la connaissance des mouvements relatifs de l’objet 3D. l’ajout d’un capteur actif délivrant des mesures de profondeur a conduit à une meilleure observabilité du système. L’estimation conjointe de la structure et du mouvement 3D est réalisée par un filtre unique qui fusionne les informations issues des capteurs pour poursuivre les primitives 2D dans les séquences d’images et estimer les positions et le mouvement de l’objet 3D. La solution repose sur un filtre de Kalman Etendu centralisé. Cette méthode a été validée sur des données simulées et réelles. L’intérêt réside surtout dans son indépendance par rapport au type de capteur utilisé et sa capacité à gérer un système de perception composé de capteurs de nature différente. Enfin, pour palier les limitations intrinsèques du filtrage de Kalman Etendu, une première étude est menée sur l’apport du filtrage particulaire à ce problème non-linéaire d’estimation.

Innovate Bristol

Author : Sven Boermeester
Publisher :
ISBN 13 : 9781949677072
Total Pages : pages
Book Rating : 4.6/5 (77 download)

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Book Synopsis Innovate Bristol by : Sven Boermeester

Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.

Terra 2008

Author : Leslie Rainer
Publisher : Getty Publications
ISBN 13 : 1606060430
Total Pages : 438 pages
Book Rating : 4.6/5 (6 download)

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Book Synopsis Terra 2008 by : Leslie Rainer

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Ultra Low Noise CMOS Image Sensors

Author : Assim Boukhayma
Publisher : Springer
ISBN 13 : 3319687743
Total Pages : 187 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Ultra Low Noise CMOS Image Sensors by : Assim Boukhayma

Download or read book Ultra Low Noise CMOS Image Sensors written by Assim Boukhayma and published by Springer. This book was released on 2017-11-28 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides a thorough noise analysis for conventional CIS readout chains, while also presenting and discussing a variety of noise reduction techniques that allow the read noise in standard processes to be optimized. Two physical implementations featuring sub-0.5-electron RMS are subsequently presented to verify the proposed noise reduction techniques and provide a full characterization of a VGA imager. Based on the verified noise calculation, the impact of the technology downscaling on the input-referred noise is also studied. Further, the thesis covers THz CMOS image sensors and presents an original design that achieves ultra-low-noise performance. Last but not least, it provides a comprehensive review of CMOS image sensors.

Human Scale Development

Author : Manfred A. Max-Neef
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Human Scale Development by : Manfred A. Max-Neef

Download or read book Human Scale Development written by Manfred A. Max-Neef and published by . This book was released on 1991 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a people-centred approach to development.

Robotic Systems

Author : S.G. Tzafestas
Publisher : Springer Science & Business Media
ISBN 13 : 9401125260
Total Pages : 625 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Robotic Systems by : S.G. Tzafestas

Download or read book Robotic Systems written by S.G. Tzafestas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robotics is a modern interdisciplinary field that has emerged from the marriage of computerized numerical control and remote manipulation. Today's robotic systems have intelligence features, and are able to perform dexterous and intelligent human-like actions through appropriate combination of learning, perception, planning, decision making and control. This book presents advanced concepts, techniques and applications reflecting the experience of a wide group of specialists in the field. Topics include: kinematics, dynamics, path planning and tracking, control, mobile robotics, navigation, robot programming, and sophisticated applications in the manufacturing, medical, and other areas.

The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities

Author : George E. Cooper
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities by : George E. Cooper

Download or read book The Use of Pilot Rating in the Evaluation of Aircraft Handling Qualities written by George E. Cooper and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Living Language

Author : Laura M. Ahearn
Publisher : John Wiley & Sons
ISBN 13 : 1119060664
Total Pages : 394 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Living Language by : Laura M. Ahearn

Download or read book Living Language written by Laura M. Ahearn and published by John Wiley & Sons. This book was released on 2016-10-06 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised and updated, the 2nd Edition of Living Language: An Introduction to Linguistic Anthropology presents an accessible introduction to the study of language in real-life social contexts around the world through the contemporary theory and practice of linguistic anthropology. Presents a highly accessible introduction to the study of language in real-life social contexts around the world Combines classic studies on language and cutting-edge contemporary scholarship and assumes no prior knowledge in linguistics or anthropology Features a series of updates and revisions for this new edition, including an all-new chapter on forms of nonverbal language Provides a unifying synthesis of current research and considers future directions for the field

Proceedings of the 1st International Conference on Smart Innovation, Ergonomics and Applied Human Factors (SEAHF)

Author : César Benavente-Peces
Publisher : Springer
ISBN 13 : 9783030229665
Total Pages : 438 pages
Book Rating : 4.2/5 (296 download)

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Book Synopsis Proceedings of the 1st International Conference on Smart Innovation, Ergonomics and Applied Human Factors (SEAHF) by : César Benavente-Peces

Download or read book Proceedings of the 1st International Conference on Smart Innovation, Ergonomics and Applied Human Factors (SEAHF) written by César Benavente-Peces and published by Springer. This book was released on 2020-08-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses a range of real-world issues including industrial activity, energy management, education, business and health. Today, technology is a part of virtually every human activity, and is used to support, monitor and manage equipment, facilities, commodities, industry, business, and individuals’ health, among others. As technology evolves, new applications, methods and techniques arise, while at the same time citizens’ expectations from technology continue to grow. In order to meet the nearly insatiable demand for new applications, better performance and higher reliability, trustworthiness, security, and power consumption efficiency, engineers must deliver smart innovations, i.e., must develop the best techniques, technologies and services in a way that respects human beings and the environment. With that goal in mind, the key topics addressed in this book are: smart technologies and artificial intelligence, green energy systems, aerospace engineering/robotics and IT, information security and mobile engineering, IT in bio-medical engineering and smart agronomy, smart marketing, management and tourism policy, technology and education, and hydrogen and fuel-cell energy technologies.

Dictionary of Building and Civil Engineering

Author : Don Montague
Publisher : Taylor & Francis
ISBN 13 : 9780419199106
Total Pages : 472 pages
Book Rating : 4.1/5 (991 download)

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Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Principles of Cognitive Psychology

Author : Michael W. Eysenck
Publisher : Psychology Press
ISBN 13 : 9781841692609
Total Pages : 452 pages
Book Rating : 4.6/5 (926 download)

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Book Synopsis Principles of Cognitive Psychology by : Michael W. Eysenck

Download or read book Principles of Cognitive Psychology written by Michael W. Eysenck and published by Psychology Press. This book was released on 2001 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and updated, this work covers the fundamental topics in cognitive psychology such as perception, attention and pattern recognition, memory, language, problem solving and reasoning.

Water & Heritage

Author : Willem Willems
Publisher :
ISBN 13 : 9789088903861
Total Pages : 434 pages
Book Rating : 4.9/5 (38 download)

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Book Synopsis Water & Heritage by : Willem Willems

Download or read book Water & Heritage written by Willem Willems and published by . This book was released on 2017-01-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital for life, and its availability has been a concern for mankind throughout the ages. Its presence has always been ascertained in a variety of ways and the development of human society everywhere is connected with various forms of water management. Man also needed to manage water to find protection from its dangers and the need for that is increasing. In the coming decades, the impact of climate change is expected to intensify floods and droughts, affect groundwater resources, raise sea levels, increase pollution and enhance the frequency and magnitude of disasters. Societies around the world are challenged to adapt to these threats to ensure water security, economic prosperity and environmental and cultural sustainability. This book deals with the heritage of water management and the use that was made of water, as well as the impact of water management on heritage. An example of the former may be an ancient irrigation system in the Filipines or in the Middle East that still functions today, while the latter may reflect the importance of maintaining groundwater levels for the preservation of organic remains on archaeological sites or of wooden piles underneath standing buildings. In either case the papers in this book reflect the dynamic nature of water, and hence the equally dynamic relation between water management and heritage. This publication follows up on a Heritage and Water conference in Amsterdam, the first of its kind. Its main purpose is to credibly present the importance and value of heritage and historical experience for water and sustainable development, and vice versa, present the importance of water management for the protection of heritage. It presents evolving insights and concepts about Water and about Heritage from a variety of disciplines, policy and public perspectives illustrated with cases studies and aims to connect decision makers with experts such as engineers, archaeologists, historians, geographers, ecologist and landscape architects

Integrated Design and Manufacturing in Mechanical Engineering

Author : Patrick Chedmail
Publisher : Springer
ISBN 13 : 9789401063562
Total Pages : 545 pages
Book Rating : 4.0/5 (635 download)

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Book Synopsis Integrated Design and Manufacturing in Mechanical Engineering by : Patrick Chedmail

Download or read book Integrated Design and Manufacturing in Mechanical Engineering written by Patrick Chedmail and published by Springer. This book was released on 2012-11-05 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the selected papers of the first I.D.M.M.E. conference on 'Integrated Design and Manufacturing in Mechanical Engineering', held in Nantes from 15-17 April 1996. Its objective was to discuss the questions related to the definition of the optimal design and manufacturing processes and to their integration through coherent methodologies in adapted environments. The initiative of the Conference and the organization thereof, is mainly due to the efforts of the french PRIMECA group (Pool of Computer Resources for Mechanics) started eight years ago. We were able to attract the internationru community with the support of the International Institution for Production Engineering Research (C.I.R.P.). The conference brought together two hundred and fifty specialists from around the world. About ninety papers and twenty posters were presented covering three main topics : optimization and evaluation of the product design process, optimization and evaluation of the manufacturing systems and methodological aspects.

Space Systems as Contributors to the NATO Defence Mission

Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Space Systems as Contributors to the NATO Defence Mission by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium

Download or read book Space Systems as Contributors to the NATO Defence Mission written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: