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Geometric probability and GIS: some applications for the statistics of intersections / A.M. Shortridge in International journal of geographical information science IJGIS, vol 16 n° 3 (april 2002)
[article]
Titre : Geometric probability and GIS: some applications for the statistics of intersections Type de document : Article/Communication Auteurs : A.M. Shortridge, Auteur ; Michael F. Goodchild, Auteur Année de publication : 2002 Article en page(s) : pp 227 - 243 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] intersection spatiale
[Termes IGN] objet géographique linéaire
[Termes IGN] objet géographique zonal
[Termes IGN] système d'information géographique
[Termes IGN] tessellationNuméro de notice : A2002-050 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810110099099 En ligne : https://doi.org/10.1080/13658810110099099 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21967
in International journal of geographical information science IJGIS > vol 16 n° 3 (april 2002) . - pp 227 - 243[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-02031 RAB Revue Centre de documentation En réserve L003 Disponible Extraktion von Straßennetzen aus optischen Satellitenbilddaten / C. Wiedemann (2002)
Titre : Extraktion von Straßennetzen aus optischen Satellitenbilddaten Titre original : [Extraction des réseaux routiers à partir de données satellitaires optiques] Type de document : Thèse/HDR Auteurs : C. Wiedemann, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2002 Collection : DGK - C Sous-collection : Dissertationen num. 551 Importance : 94 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9590-8 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] extraction automatique
[Termes IGN] graphe
[Termes IGN] image aérienne
[Termes IGN] image optique
[Termes IGN] image satellite
[Termes IGN] logique floue
[Termes IGN] objet géographique linéaire
[Termes IGN] relation topologique
[Termes IGN] réseau routierIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) This thesis presents an approach for the automatic extraction of road networks from optical satellite imagery and for the evaluation of the extraction results. For the extraction of the roads, road network characteristics are explicitly used. The evaluation comprises the quality of the extracted roads, using measures, known from literature. The network characteristics themselves are evaluated based on newly developed quality measures. Tests show that the use of the network characteristics for road extraction leads to results with much better network characteristics. Input data are optical aerial or satellite images with a ground pixel size of about 2 m x 2 m, possibly having more than one spectral channel.
The approach for road extraction consists of two parts: the preliminary extraction and the improvement of the extraction. In the first part, a preliminary road network is extracted. The used model comprises local (radiometric) and regional (geometric) aspects, as well as the connection property of roads (topological aspects). This property of road networks is implemented through the search for long connected road segments. In the second part, the improvement of the extraction result based on further network characteristics is performed. On the one hand, among ancillary conditions, the road network is optimized such that there exists a connection as short as possible between any pair of points lying on the road network. This is a major reason for the network structure of roads and, therefore, an important network characteristic. This characteristic is implemented by locally analyzing the path lengths within the extracted road network. On the other hand, the network structure of roads depends on the crossings, which connect roads. By means of an explicit reconstruction of crossings, some errors of the preliminary extraction are eliminated and, a visually pleasing and topologically correct result can be obtained.
The evaluation of the extraction results is carried out by a comparison with reference data. First, the extraction results are matched to the reference data. Then, quality measures for the evaluation of the extraction are derived from the matching results. The evaluation is carried out separately for roads and crossings. A new approach for the evaluation of the network characteristics of the extraction results is presented in this thesis. It is based on the analysis of path lengths as well as on the topology of the extraction results, in each case with respect to the reference data. It supplements the existing approaches for the evaluation of extraction results by adding the evaluation of network characteristics, which are especially important for road networks.
The complete process is illustrated on the basis of one example and the results are evaluated and discussed. Subsequent, the strengths and weaknesses of the developed approaches are discussed. The obtained results prove the capability of the developed approaches for the extraction of road networks. An outlook concludes the thesis.Numéro de notice : 13120 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54888 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13120-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible
Titre : Geographic information science, Giscience 2002 : Second International Conference, Boulder, Co, USA, 25 - 28 septembre 2002 : Proceedings Type de document : Actes de congrès Auteurs : Max J. Egenhofer, Éditeur scientifique ; David M. Mark, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 2478 Conférence : GIScience 2002, 2nd International Conference on geographic information science 25/09/2002 28/09/2002 Boulder Colorado - Etats-Unis Proceedings Springer Importance : 360 p. Format : 15 x 24 cm ISBN/ISSN/EAN : 978-3-540-44253-0 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] diagramme de Voronoï
[Termes IGN] entrepôt de données localisées
[Termes IGN] généralisation cartographique
[Termes IGN] internet
[Termes IGN] relation topologique
[Termes IGN] système d'information géographique
[Termes IGN] système multi-agents
[Termes IGN] topologieNote de contenu : - Investigating Recursive Point Voronoi Diagrams - Barry Boots, Robert Feick, Narushige Shiode, and Steven Roberts
- Distinguishing Instances and Evidence of Geographical Concepts for Geospatial Database Design - Boyan Brodaric and Mark Gahegan
- Geographically Weighted Local Statistics Applied to Binary Data - Chris Brunsdon, Stewart Fotheringham, and Martin Charlton
- Transmitting Vector Geospatial Data across the Internet - Barbara P. Buttenfield
- GeoVSM: An Integrated Retrieval Model for Geographic Information - Guoray Cai
- An Evaluation of Buffering Algorithms in Fuzzy GISs - Damien Duff and Hans W. Guesgen
- From Geo- to Eco-ontologies - Frederico Fonseca, James Martin, and M. Andrea Roddguez
- Modeling the Semantics of Geographic Categories through Conceptual Integration - Werner Kuhn
- A Graded Approach to Directions between Extended Objects - Lars Kulik, Carola Eschenbach, Christopher Habel, and Hedda Rahel Schmidtke
- Analyzing Relative Motion within Groups of Trackable Moving Point Objects - Patrick Laube and Stephan Imfeld
- A Comparison of Spatio-temporal Interpolation Methods - Lixin Li and Peter Revesz
- Multi-agent Systems for Web-Based Map Information Retrieval - Maozhen Li, Sheng Zhou, and Christopher B. Jones
- New Methods to Generate Neutral Images for Spatial Pattern Recognition - Niels Liebisch, Geoffrey Jacquez, Pierre Goovaerts, and Andreas Kaufmann
- Combining Mediator and Data Warehouse Technologies for Developing Environmental Decision Support Systems - Ana Maria de C. Mourd, Marcio Victorino, and Asterio Tanaka
- Topologically- Consistent Map Generalisation Procedures and Multi-scale Spatial Databases - P.M. van der Poorten, Sheng Zhou, and Christopher B. Jones
- Mobile Journey Planning for Bus Passengers - Desmond Rainsford and William A. Mackaness
- Enriching Wayfinding Instructions with Local Landmarks - Martin Raubal and Stephan Winter
- A Content-Based Approach to Searching and Indexing Spatial Configurations - M. Andrea RodTTguez and Francisco A. Godoy
- A Qualitative Account of Discrete Space - Anthony J. Roy and John G. Stell
- A New Approach to Incorporate Uncertainty in Terrain Modeling - Jorge Santos, Weldon A. Lodwick, and Arnold Neumaier
- Decomposing Integer Programming Models for Spatial Allocation - Takeshi Shirabe and C. Dana Tomlin
- An Operational Metadata Framework for Searching, Indexing, and Retrieving Distributed Geographic Information Services on the Internet - Ming-Hsiang Tsou
- "Humane" Interfaces to Improve the Usability of Data Clearinghouses - Kuuipo A. Walsh, Cherri M. Pancake, Dawn J. Wright, Sally Haerer, and F. J. Hanus
- Integrating Spatio-thematic Information - Michael Worboys and Matt DuckhamNuméro de notice : 13157 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes DOI : 10.1007/3-540-45799-2 En ligne : http://dx.doi.org/10.1007/3-540-45799-2 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34616 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13157-01 CG2002 Livre Centre de documentation Congrès Disponible Topology revisited: representing spatial relations / D.M. Theobald in International journal of geographical information science IJGIS, vol 15 n° 8 (december 2001)
[article]
Titre : Topology revisited: representing spatial relations Type de document : Article/Communication Auteurs : D.M. Theobald, Auteur Année de publication : 2001 Article en page(s) : pp 689 - 705 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] cartographie
[Termes IGN] modèle topologique de données
[Termes IGN] numérisation
[Termes IGN] relation spatiale
[Termes IGN] relation topologique
[Termes IGN] topologieNuméro de notice : A2001-120 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810110074519 En ligne : https://doi.org/10.1080/13658810110074519 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21820
in International journal of geographical information science IJGIS > vol 15 n° 8 (december 2001) . - pp 689 - 705[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-01081 RAB Revue Centre de documentation En réserve L003 Disponible Analysis of surface changes using primitive events / Yukio Sadahiro in International journal of geographical information science IJGIS, vol 15 n° 6 (september 2001)
[article]
Titre : Analysis of surface changes using primitive events Type de document : Article/Communication Auteurs : Yukio Sadahiro, Auteur Année de publication : 2001 Article en page(s) : pp 523 - 538 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse spatio-temporelle
[Termes IGN] détection de changement
[Termes IGN] données spatiotemporelles
[Termes IGN] érosion
[Termes IGN] primitive
[Termes IGN] relation topologique
[Termes IGN] système d'information géographiqueRésumé : (Auteur) This paper develops a method for analysing changes in a surface, a scalar function defined over a two-dimensional region. The method is based on the topological method for a static surface that uses critical points (peaks, bottoms, and cols) and their connecting lines. To extend the topological method to spatio-temporal domain, four types of primitive events are proposed : 1) generation, 2) disappearance, 3) movement, and 4) switch. The change of a surface is described by a combination of these primitives. From sufaces of two times a set of primitive events that cause the change is deduced. They are stored in GIS as spatial objects with attributes, and their spatio-temporal pattern is visually analysed. To test the validity of the method, the change of retail cluster in Shinjuku and Shibuya area in Tokyo is analysed. The empiracal study yielded some interesting finding that help us changes in the spatial structure of retailing. Numéro de notice : A2001-078 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810110060433 En ligne : https://doi.org/10.1080/13658810110060433 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21777
in International journal of geographical information science IJGIS > vol 15 n° 6 (september 2001) . - pp 523 - 538[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-01061 RAB Revue Centre de documentation En réserve L003 Disponible Étude de treillis de relations topologiques pour l'interprétation d'images satellitaires / Florence Le Ber in Revue internationale de géomatique, vol 11 n° 2 (juin - aout 2001)PermalinkEtude des incohérences topologiques et sémantiques entre représentations multiples de phénomènes géographiques / David Sheeren (2001)PermalinkEtude topologique de la fonctionnalité des réseaux / Jean-François Gleyze (2001)PermalinkModélisation de relations spatiales : prise en compte des aspects topologiques et directionnels / Jamal Malki (2001)PermalinkA multi-resolution modelling approach for semi-automatic extraction of streets: application to high-resolution images from the Ikonos satellite / Renaud Péteri (2001)PermalinkUncertain topological relations between imprecise regions / Stephan Winter in International journal of geographical information science IJGIS, vol 14 n° 5 (july 2000)PermalinkObject-oriented digital terrain modelling for geomatics applications / A.M. Wahby Amer in Geomatica, vol 54 n° 1 (March 2000)PermalinkLa topologie dans le monde SIG / Laurent Coudercy in INCT Bulletin des sciences géographiques, n° 4 (octobre 1999)PermalinkPrésentation d'un modèle 3D et analogies avec un modèle 2D / Arnaud De La Losa in Revue internationale de géomatique, vol 8 n° 4 (décembre 1998 – février 1999)PermalinkGIS and community-based planning: Exploring the diversity of neighborhood perspectives and needs / Sarah Elwood in Cartography and geographic information systems, vol 25 n° 2 (April 1998)Permalink