Détail de l'autorité
SIGSPATIAL GIS 2016, 24th ACM International Conference on Advances in Geographic Information Systems 31/10/2016 03/11/2016 San Francisco Californie - Etats-Unis Proceedings ACM
nom du congrès :
SIGSPATIAL GIS 2016, 24th ACM International Conference on Advances in Geographic Information Systems
début du congrès :
31/10/2016
fin du congrès :
03/11/2016
ville du congrès :
San Francisco
pays du congrès :
Californie - Etats-Unis
site des actes du congrès :
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Documents disponibles (1)
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Progressive streaming and massive rendering of 3D city models on web-based virtual globe / Quoc-Dinh Nguyen (2016)
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Titre : Progressive streaming and massive rendering of 3D city models on web-based virtual globe Type de document : Article/Communication Auteurs : Quoc-Dinh Nguyen , Auteur ; Mathieu Brédif
, Auteur ; Didier Richard
, Auteur ; Nicolas Paparoditis
, Auteur
Editeur : New York [Etats-Unis] : Association for computing machinery ACM Année de publication : 2016 Conférence : SIGSPATIAL GIS 2016, 24th ACM International Conference on Advances in Geographic Information Systems 31/10/2016 03/11/2016 San Francisco Californie - Etats-Unis Proceedings ACM Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] flux continu
[Termes IGN] globe virtuel
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] rendu (géovisualisation)
[Termes IGN] temps réel
[Termes IGN] visualisation de données
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) The need for the real-time interactive co-visualization of 3D urban environments on a Web-based virtual Globe arises naturally in GIS but it still remains challenging due to the complexity of city models and their huge data sizes which largely overload the computational power and memory capacity of client devices. Especially on the Web, the visualization of city models makes their rendering not real-time because of the lack of content adaptation and progressive data transmission. This paper presents technical solutions for the co-visualization of massive city models in a Web-based virtual globe, allowing navigation over 3D cities on the globe in real-time. The volume of 3D city data, such as building data, does not allow us to render them directly, nor to keep them in the main memory. We propose to use not only a hierarchical presentation of geo-spatial data to create a chunk-based multiple resolution data structure which reduces complexity of the geometry being rendered; but also a view dependent algorithm so that only small subsets of 3D city models are streamed progressively in real-time and kept in client memory to contribute efficiently to the rendered image. Experimental results show that we can navigate over 3D cities on the Globe in real-time. Numéro de notice : C2016-030 Affiliation des auteurs : LASTIG MATIS (2012-2019) Thématique : GEOMATIQUE/IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1145/2996913.2997008 Date de publication en ligne : 10/11/2016 En ligne : https://doi.org/10.1145/2996913.2997008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89281