Download or read book Reconnaissance et analyse automatique d images pour la num risation de l environnement routier written by Jérôme Ninot and published by . This book was released on 2011 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Un système de cartographie mobile est un dispositif technologique qui permet de numériser rapidement et très précisément un environnement routier à partir d'imagerie et de mesure LASER. Si les méthodes permettent aujourd'hui de reconstruire des environnements à partir de nuages de points texturés, la saisie de données représente alors le principal goulot d'étranglement pour la constitution de base de données géographiques et la modélisation de l'environnement. Cette étude a donc pour objet la reconnaissance automatique par traitement d'image afin d'inventorier et d'analyser la scène routière de manière plus rapide, plus précise et plus objective. Nous abordons dans une première partie la détection et la reconnaissance de la signalisation horizontale en présentant une famille de filtres d'ordre pour améliorer la phase d'extraction. Cette première phase, couplée à un algorithme d'estimation robuste des paramètres de ligne, permet de déterminer une cohérence spatiale pour reconnaitre le type de marquage. En parallèle, nous proposons un algorithme de reconnaissance de signalisation verticale par fusion de primitives au cœur d'un algorithme évolutionnaire hybride. Notre approche utilise des modèles déformables par transformation affine pour permettre de reproduire les déformations de perspective. Enfin, nous présentons le véhicule de cartographie mobile développé, ainsi qu'un aperçu des travaux réalisés par l'équipe de recherche VIAMETRIS dans le domaine de l'analyse de données LASER et la classification de points.
Download or read book VISION AUTOMATIQUE APPLIQUEE A LA DETECTION D OBSTACLES DANS UN ENVIRONNEMENT ROUTIER written by AIME.. MEYGRET and published by . This book was released on 1990 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS LE CADRE DES RECHERCHES DU PROJET EUREKA PROMETHEUS NOUS NOUS INTERESSONS A LA DETECTION D'OBSTACLES EN ENVIRONNEMENT ROUTIER AU MOYEN DE DIFFERENTES TECHNIQUES DE VISION. DANS LA PREMIERE PARTIE DE CETTE THESE NOUS ETUDIONS LA STEREOVISION PASSIVE AFIN DE PRODUIRE UNE REPRESENTATION TRIDIMENSIONNELLE DE L'ENVIRONNEMENT. NOUS PRESENTONS UN ALGORITHME ORIGINAL DE MISE EN CORRESPONDANCE DE POINTS DE CHAINES DE CONTOURS, BASE SUR UNE APPROCHE MULTI-RESOLUTION. DES HYPOTHESES D'OBSTACLES SONT ENSUITE GENEREES PAR UN PROCESSUS DE RECONNAISSANCE BASE SUR UNE COOPERATION ENTRE UNE EMISSION D'HYPOTHESES 2D (TRAITEMENT MONOCULAIRE BASE SUR LES GROUPEMENTS PERCEPTUELS) ET UNE VALIDATION 3D (UTILISANT LES RESULTATS DE L'ALGORITHME DE STEREOVISION). DANS LA DEUXIEME PARTIE DE CETTE THESE NOUS NOUS INTERESSONS A L'ANALYSE DU MOUVEMENT DANS UNE SEQUENCE D'IMAGES. UNE ADAPTATION DE L'ALGORITHME DE MISE EN CORRESPONDANCE DEVELOPPE DANS LA PREMIERE PARTIE, PERMET DE DETECTER LE FLOT OPTIQUE (PROJECTION DANS LE PLAN IMAGE DES VECTEURS VITESSES REELLES) PAR MISE EN CORRESPONDANCE D'IMAGES PRISES A DES INSTANTS DIFFERENTS. UNE SEGMENTATION DES DONNEES STEREO PERMET DE DETECTER DES OBJETS (AU SENS LARGE DU TERME) QUI SONT CLASSES RIGIDE OU DEFORMABLE A PARTIR D'UNE SEGMENTATION DU FLOT OPTIQUE. DANS CHAQUE PARTIE NOUS PRESENTONS ET ANALYSONS DES RESULTATS EXPERIMENTAUX SUR DES DONNEES REELLES
Download or read book Analyse de s quences d images st r oscopiques pour la d tection d objets dans un environnement routier written by Ruihua Ma and published by . This book was released on 1994 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA PRESENTE THESE DECRIT LE TRAVAIL DE L'AUTEUR EFFECTUE DANS LE CADRE DU PROJET EUREKA PROMETHEUS (PROGRAM FOR A EUROPEAN TRAFFIC WITH HIGHEST EFFICIENCY AND UNPRECEDENTED SAFETY). LE BUT FINAL EST LA DETECTION D'OBSTACLES ROUTIERS PAR ANALYSE DE SEQUENCES D'IMAGES STEREOSCOPIQUES OBTENUES PAR DEUX CAMERAS, UN PROBLEME CONNU SOUS LE NOM DE NAVIGATION VISUELLE. NOTRE APPROCHE EST CONFORME A LA THEORIE DE MARR ET COMPREND SIX ETAPES: (I) EXTRACTION DE PRIMITIVES ; (II) RECONSTITUTION 3D ; (III) DETECTION DU MOUVEMENT APPARENT ; (IV) SEGMENTATION DE SCENE ; (V) CALCUL DU MOUVEMENT 3D ; ET ENFIN (VI) DETECTION D'OBSTACLES. LES PRIMITIVES UTILISEES SONT DES CONTOURS. 4 PROBLEMES (DE II A V) ONT ETE ETUDIES. NOUS JUSTIFIONS NOTRE CHOIX AINSI: PRIMO, LES PROBLEMES ETUDIES SONT D'INTERET GENERAL, I.E., FONDAMENTAUX POUR TOUT CADRE THEORIQUE ; ET SECONDO, NOTRE OBSERVATION MONTRE QUE LA PERFORMANCE TRES MOYENNE DES ALGORITHMES EXISTANTS EST DUE LA PLUPART DU TEMPS A UNE EXPLOITATION INEFFICACE DES INFORMATIONS. NOTRE ACCENT PORTE DONC SUR UNE MEILLEURE COMPREHENSION DE CHAQUE PROBLEME TRAITE. AINSI POUR CHACUN DES QUATRE PROBLEMES NOUS COMMENCONS PAR UNE ETUDE CRITIQUE DE L'ETAT DE L'ART ET PUIS PROPOSONS NOTRE SOLUTION. NOUS AVONS CONCU LES ALGORITHMES POUR LA STEREO, LE SUIVI TEMPOREL, LA SEGMENTATION DE SCENE ET L'ESTIMATION OPTIMALE ET ROBUSTE DU MOUVEMENT 3D. CEUX-CI SONT TOUS AUTOMATIQUES ET ONT ETE TESTES SUR DE NOMBREUSES SCENES ROUTIERES REELLES. LES RESULTATS SE SONT AVERES SATISFAISANTS
Download or read book Speed Management written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2006-10-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speeding is the number one road safety problem in a large number of OECD/ECMT countries. It is responsible for around one third of the current, unacceptably high levels of road fatalities. Speeding has an impact not only on accidents but also on the ...
Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
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.
Download or read book Culture urban future written by UNESCO and published by UNESCO Publishing. This book was released on 2016-12-31 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report presents a series of analyses and recommendations for fostering the role of culture for sustainable development. Drawing on a global survey implemented with nine regional partners and insights from scholars, NGOs and urban thinkers, the report offers a global overview of urban heritage safeguarding, conservation and management, as well as the promotion of cultural and creative industries, highlighting their role as resources for sustainable urban development. Report is intended as a policy framework document to support governments in the implementation of the 2030 Agenda for Sustainable Urban Development and the New Urban Agenda.
Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
Download or read book Planning Connecting and Financing Cities Now written by Somik V. Lall and published by World Bank Publications. This book was released on 2013-01-21 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report was written by a team led by Somik V. Lall"--P. xi.
Download or read book Parliamentary Oversight of the Security Sector written by Philipp Fluri and published by DCAF. This book was released on 2003 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Max Weber and Karl Marx written by Karl Lowith and published by Routledge. This book was released on 2002-11-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2004. Lowith's study of Max Weber and Karl Marx is a key text in modem interpretations of the theme of alienation in Marxist theory and rationalisation in Weber's sociology. It remains the best short student introduction to the differences and comparisons between these essential thinkers. This new edition includes a Preface by Professor Bryan S. Turner which demonstrates the relevance of the book for contemporary sociology.
Download or read book Livable Cities for the 21st Century written by and published by World Bank Publications. This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As one of the World Bank's contributions to the Habitat II process in Istanbul, this publication first tells the story of nearly a quarter century of the Bank's program of urban assistance for developing countries. It then turns to the future to draw att
Download or read book A Frequency Dictionary of French written by Deryle Lonsdale and published by Routledge. This book was released on 2009-03-25 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Frequency Dictionary of French is an invaluable tool for all learners of French, providing a list of the 5000 most frequently used words in the language. Based on a 23-million-word corpus of French which includes written and spoken material both from France and overseas, this dictionary provides the user with detailed information for each of the 5000 entries, including English equivalents, a sample sentence, its English translation, usage statistics, and an indication of register variation. Users can access the top 5000 words either through the main frequency listing or through an alphabetical index. Throughout the frequency listing there are thematically-organized lists of the top words from a variety of key topics such as sports, weather, clothing, and family terms. An engaging and highly useful resource, the Frequency Dictionary of French will enable students of all levels to get the most out of their study of French vocabulary. Former CD content is now available to access at www.routledge.com/9780415775311 as support material. Designed for use by corpus and computational linguists it provides the full text in a format that researchers can process and turn into suitable lists for their own research work. Deryle Lonsdale is Associate Professor in the Linguistics and English Language Department at Brigham Young University (Provo, Utah). Yvon Le Bras is Associate Professor of French and Department Chair of the French and Italian Department at Brigham Young University (Provo, Utah).
Download or read book Aquaculture Development written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides annotations to the Principles of Article 9 of the Code of Conduct for Responsible Fisheries. These annotations are meant to serve as general guidance, and should be taken as suggestions or observations intended to assist those interested in identifying their own criteria and options for actions, as well as partners for collaboration, in support of sustainable aquaculture development.
Download or read book Multi party Elections in Africa written by Michael Cowen and published by . This book was released on 2002 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains electoral studies of multiparty politics in 14 African countries during the 1990s. Most are about national elections in Anglophone Africa. There are also less well-known examples from Sudan, Ethiopia and Guinea Bissau. The collection also features studies of the local elections in Namibia and of a significant by-election in Malawi. The multiparty period had been put, wherever possible, within the historical context of earlier elections in Africa. Questions addressed include: how did incumbent governing regimes learn to live with multiparty politics? Why have some elections been so closely fought and others have suffered from apathy? Why has there been relatively open political expression and activity when the elections have increased the political and economic manipulation by incumbent governments? Why have the elections of the 1990s been so marked by local and ethnic variations? To what extent did this wave of democracy result from pressure from donor countries?
Download or read book Forestry Research Management written by and published by . This book was released on 1987 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Opening Doors written by The World Bank and published by World Bank Publications. This book was released on 2013-02-07 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report analyzes key challenges for improving gender equality in the MENA region and provides policy priorities that Governments could consider to address these challenges. By and large the critical areas are in improving economic and political participation of females.
