Descripteur
Termes IGN > géomatique > base de données localisées > couche thématique > objet géographique
objet géographiqueSynonyme(s)objet spatialVoir aussi |
Documents disponibles dans cette catégorie (430)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Rapport final, projet RATP, Volume 1. Annexe 1 à 7 / Arnaud Pollet (2005)
Titre de série : Rapport final, projet RATP, Volume 1 Titre : Annexe 1 à 7 Type de document : Mémoire Auteurs : Arnaud Pollet , Auteur ; Nicolas David , Auteur ; Paul Rebischung , Auteur ; P. Nouaille-Degorce, Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2005 Importance : 220 p. Format : 21 x 30 cm Note générale : Bibliographie
Rapport de projet SIG-carto, cycle des ingénieurs diplômés de l'ENSG 2ème année (IT2).Langues : Français (fre) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] aide à la décision
[Termes IGN] appariement
[Termes IGN] ArcGIS
[Termes IGN] base de données localisées IGN
[Termes IGN] bus (informatique)
[Termes IGN] étude de faisabilité
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] Géoroute
[Termes IGN] graphe
[Termes IGN] logiciel SIG
[Termes IGN] objet géographique linéaire
[Termes IGN] plan
[Termes IGN] réseau de transport
[Termes IGN] simplification de contour
[Termes IGN] système d'information géographiqueIndex. décimale : MPRO Projet SIG-carto des ingénieurs 2e année jusqu'en 2008 Résumé : (Auteur) Dans le cadre du projet SIG-CARTO de deuxième année du cycle des ingénieurs des travaux, la RATP nous a demandé de l'aider dans le processus d'automatisation de la généralisation des supports de lignes de bus, nécessaire à la réalisation des plans de secteurs. Pour ce faire, nous disposons du rapport de stage réalisé par Clément Godin. Notre travail consistait à déterminer la faisabilité des méthodes de Mr Godin, à implémenter certaines de ces méthodes sous forme d'algorithmes clairs et réutilisables et à tester ces algorithmes à l'aide d'un logiciel SIG. Note de contenu : - CONTEXTE
- PROBLEMATIQUE
- PROCESSUS DE REALISATION DES PLANS DE SECTEUR
- ACTEURS ET BESOINS
- DEMANDE.
- OBJECTIFS
- OBJECTIFS DE RESULTATS
- OBJECTIFS DE DELAIS
- OBJECTIFS DE COUTS
- PLANIFICATION DES TACHES ET DES ETAPES
- PROCEDURES DE SUIVI ET DE VALIDATION DU PROJET
- MOYENS
- CONTRAINTES
- RISQUES
- BUDGET PREVISIONNEL
CONCLUSION
Annexe 1 : Reformulation de la demande
Annexe 2 : Cahier des charges fonctionnel
Annexe 3 : Etude comparative des scenarii techniques
Annexe 4 : Cahier des charges technique
Annexe 5 : Plan d'Assurance qualité
Annexe 6 : Journal de bord
Annexe 7 : CourrielNuméro de notice : 23507A Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Mémoire de projet pluridisciplinaire Organisme de stage : Régie Autonome des Transports Parisiens (RATP) Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=51521 Réservation
Réserver ce documentExemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 23507-01A MPRO Livre Centre de documentation En réserve Mezzanine Disponible 23507-02A MPRO Livre Centre de documentation En réserve Mezzanine Disponible Strategy for extraction of 3D architectural objects from laser and image data acquired from the same viewpoint / Matthieu Deveau (2005)
Titre : Strategy for extraction of 3D architectural objects from laser and image data acquired from the same viewpoint Type de document : Article/Communication Auteurs : Matthieu Deveau , Auteur ; X. Chen, Auteur ; G. Thibault, Auteur ; Nicolas Paparoditis , Auteur ; Marc Pierrot-Deseilligny , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2005 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 36-5/W17 Conférence : 3D-ARCH 2005, ISPRS WG V-4 Workshop, Virtual reconstruction and visualisation of complex architecture 22/08/2005 24/08/2005 Venise Italie OA Proceedings Importance : 5 p. Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] bâtiment
[Termes IGN] données laser
[Termes IGN] extraction automatique
[Termes IGN] extraction semi-automatique
[Termes IGN] objet géographique complexe
[Termes IGN] objet géographique urbain
[Termes IGN] polyligne
[Termes IGN] primitive géométrique
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] segmentation d'image
[Termes IGN] triangulation (topologie)Résumé : (Auteur) This paper presents a general strategy for 3D reconstruction of complex architectural scenes. This approach makes use of both laser data (range and retro-diffusion) and image data, and of their great complementarity. The proposed approach starts with pose estimation between the two data sets. This part is largely automated by means of correlation of fine feature points and linear primitives. The second part deals with segmentation of the scene. Here, each element of the scene must be detected. This can be fulfilled in two ways. The first one is semi-automatic extraction of the objects where user interaction is used to initialize the object localisation, the second one is fully automatic segmentation, driven by image and 3D data. Then, each object needs to be reconstructed. We consider a large range of objects since we can describe planar surfaces, general geometric primitives and generalised cylinders. When these models do not fit with the surface, that is to say on complex parts, triangulation is performed. This leads to two potential reconstruction tools: one similar to laser data editing software, with more efficient object selection and object boundary estimation, the other would perform automatic reconstruction, which would be followed by a verification procedure. The advantage of this approach, compared to existing techniques, is to reduce dramatically reconstruction time, without having any hard limitation on the set of shapes that can be obtained. Numéro de notice : C2005-010 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : http://www.isprs.org/proceedings/XXXVI/5-W17/pdf/18.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64398 Documents numériques
en open access
Strategy for extraction of 3D architectural objectsAdobe Acrobat PDF Verbale Selektion von räumlichen Objekten - ein benutzerorientierter Ansatz für mobile Systeme auf Basis von Ontologien / Joachim Baldegger (2005)
Titre : Verbale Selektion von räumlichen Objekten - ein benutzerorientierter Ansatz für mobile Systeme auf Basis von Ontologien Titre original : [Une sélection verbale des objets géographiques : une conception orientée vers l'utilisateur pour un système mobile sur la base d'une ontologie] Type de document : Thèse/HDR Auteurs : Joachim Baldegger, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 2005 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 84 Importance : 160 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906467-49-8 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] navigation pédestre
[Termes IGN] objet géographique
[Termes IGN] ontologie
[Termes IGN] représentation mentale spatialeRésumé : (Auteur) The use of speech recognition for the design of user interfaces is an important issue due to the trend in computer sciences towards mobile applications and devices. New technologies like Ubiquitous Computing and Augmented Reality enable totally new applications. This trend is also taking part in Geographic Information Science and Technologies (GIST) since many of human acts - that could be supported by these technologies - have a strong relation to space.
In this thesis, the focus is on the development of speech-based user interface methods. An important functionality is the possibility to select spatial objects or an object space through verbal description (e.g. 'The red house near the church'). This functionality has to be supported for the use with such new applications. But there is no speech recognition software that does support such functionality, yet. With that, in the sense of the 'replacement of keyboard and mouse', today only the keyboard can be replaced totally by speech recognition. The goal of this dissertation is therefore the development of a method that enables the selection of a spatial object in a database through verbal description of the situation.
The separated analysis of the two aspects system and user is an important basis for the elaborated concept. In the case of the system, the focus is laid on the database. Here, questions about form and content of the data and the creation of a usable data basis are studied. As an example, we have chosen pedestrian navigation because it is a basic functionality for mobile information systems. In the case of the user part, the main interest is laid on the user and his verbal selection statement. It is tried to structure the effect of spatial cognition and with that, to make a first step towards a formalization of it.
Based on these considerations, the 3-step model is developed. This model enables the system to extract the target objects in the database. Basic idea is the reduction of the set with the possible target objects in three steps. Each of these steps is based on different criteria.
In the first reduction step, the objects that can be seen by the user are detected by using sensors for positioning and view direction detection. Based on the assumption that the user is only selecting objects he can sec and therefore describe, ail objects out of his visual field drop out as solutions.
The second reduction step contains the problem of the different abstractions of reality by the user and the system. Each user has his own mental model of the visible situation in his mind. This model is influenced by the visualization and the application. The data that is visualized and from which an object should be selected, is stored in a spatial database according to a certain data model. For solving the problem, we have to find a way in which these two models can be mapped onto each other. As soon as this mapping is possible, we can draw a conclusion between the mental model and the data model. Since the selection statement is nothing else than a verbalization of the user's mental model, we can also draw a conclusion between this statement and the objects in the database. With that, a connection between user statement and database has been created.
The third reduction step deals with the analysis of the spatial arrangement. For this, a concept for the verification of the applicability of 22 English relational prepositions is elaborated. We strive for simple algorithms, because the performance of mobile devices is reduced. Based on the idea that the spatial information is also contained on the level of abstraction of the screen objects, several algorithms are developed. These algorithms mainly calculate coordinate comparisons and are therefore quickly processible. During these calculations, the algorithms checks whether a possible target lays within the space of applicability for the respect relational preposition. The defined spaces of applicability indicate a region on the screen for which the detected preposition is applicable.
The elaborated rules and methods are implemented for the 2-dimensional case in prototype software. This prototype is tested with a multi-level test concept. In the operation tests, the focus is laid on indirect selection statements. Beneath this type of tests, we also conduct performance tests and verify several aspects with a questionnaire. The test stage shows that the concept for the verbal selection of spatial objects is successfully applicable and good results in selection efficiency can be achieved.
The developed selection functionality on basis of verbal description of the situation is expanding today's speech-based navigation and commanding possibilities by a spatial component. With that, a further step towards user-friendly mobile services is made.Numéro de notice : 13288 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Thèse étrangère DOI : 10.3929/ethz-a-004906576 En ligne : http://dx.doi.org/10.3929/ethz-a-004906576 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54960 Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 13288-01 37.10 Livre Centre de documentation Géomatique Disponible Warping techniques: a new tool for cartographic generalisation ? / Eric Grosso (2005)
contenu dans Proceedings of the GIS Research UK, 13th Annual Conference, GISRUK 2005, 6-8 April 2005, Geography & Geomatics, University of Glasgow / Roland Billen (2005)
Titre : Warping techniques: a new tool for cartographic generalisation ? Type de document : Article/Communication Auteurs : Eric Grosso , Auteur Editeur : Geographical Information Science Research - UK GISRUK Année de publication : 2005 Conférence : GISRUK 2005, 13th GIS research UK annual conference 06/04/2005 08/04/2005 Glasgow Royaume-Uni OA Proceedings Importance : pp 344 - 354 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] déformation d'image
[Termes IGN] généralisation automatique de données
[Termes IGN] objet géographique zonal
[Vedettes matières IGN] GénéralisationRésumé : (auteur) Our research aims at examining if the transformation of map features (mainly their positions) from one scale to another can be automated using morphing techniques, more specifically warping techniques. The main goal is to develop an experimental method based on warping techniques, to transform one urban block into its equivalent at a smaller scale. This transformation would stimulate the propagation of the exaggeration of the road symbols to the neighbouring features (mainly building). Numéro de notice : C2005-003 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésNat DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84129 Quantitatively assessing roads extracted from high-resolution imagery / Renaud Péteri in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 12 (December 2004)
[article]
Titre : Quantitatively assessing roads extracted from high-resolution imagery Type de document : Article/Communication Auteurs : Renaud Péteri, Auteur ; Isabelle Couloigner, Auteur ; Thierry Ranchin, Auteur Année de publication : 2004 Article en page(s) : pp 1449 - 1456 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] analyse comparative
[Termes IGN] évaluation des données
[Termes IGN] extraction du réseau routier
[Termes IGN] image à haute résolution
[Termes IGN] objet géographique linéaireRésumé : (Auteur) Urban mapping has become a challenge for scientists since the launch of high spatial resolution satellites. This paper focuses on the problem of quality when extracting roads from such data. The definition of a judicious reference enabling the establishment of quantitative criteria is proposed. A method is presented and two sets of criteria dedicated to the evaluation of road extraction algorithms are introduced. An example of an application is proposed enhancing the benefits of a rigorous approach of this problem. Numéro de notice : A2004-505 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.70.12.1449 En ligne : https://doi.org/10.14358/PERS.70.12.1449 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27022
in Photogrammetric Engineering & Remote Sensing, PERS > vol 70 n° 12 (December 2004) . - pp 1449 - 1456[article]Road extraction using SVM and image segmentation / M. Song in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 12 (December 2004)PermalinkA robust method for semi-automatic extraction of road centrelines using a piecewise parabolic model and least square template matching / Xiangyun Hu in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 12 (December 2004)PermalinkA vector-GIS extension for generalization of binary polygon patterns / H. Millward in Cartographica, vol 39 n° 4 (December 2004)PermalinkA spatial access-oriented implementation of a 3-D GIS topological data model for urban entities / J. Lee in Geoinformatica, vol 8 n° 3 (septembre - novembre 2004)PermalinkTélédétection urbaine et résolution spatiale optimale : Intérêt pour les utilisateurs et aide pour les classifications / Anne Puissant in Revue internationale de géomatique, vol 14 n° 3 - 4 (septembre 2004 – février 2005)PermalinkModelling fuzzy topological relations between uncertain objects in a GIS / Wei Shi in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 8 (August 2004)PermalinkFrom point-based to feature-based aerial triangulation / T. Schenk in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 5-6 (July 2004)PermalinkEtude des caractéristiques projectives des objets spatiaux et de leurs relations / Roland Billen in Revue internationale de géomatique, vol 14 n° 2 (juin - aout 2004)PermalinkA structural approach to the model generalization of an urban street network / Bin Jiang in Geoinformatica, vol 8 n° 2 (June - August 2004)PermalinkClassifying land development in high-resolution panchromatic satellite images using straight-line statistics / C. Unsalan in IEEE Transactions on geoscience and remote sensing, vol 42 n° 4 (April 2004)Permalink