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A viewpoint based approach to the visual exploration of trajectory / Jie Li in Journal of Visual Languages and Computing, vol 41 (August 2017)  

Public [article]  inJournal of Visual Languages and Computing > vol 41 (August 2017) . - pp 41 - 53 Titre : A viewpoint based approach to the visual exploration of trajectory Type de document : Article/Communication Auteurs : Jie Li, Auteur ; Zhao Xiao, Auteur ; Jun Kong, Auteur Année de publication : 2017 Article en page(s) : pp 41 - 53 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse géovisuelle [Termes IGN] Chine [Termes IGN] données spatiotemporelles [Termes IGN] Google Earth [Termes IGN] jeu de données localisées [Termes IGN] KML [Termes IGN] trajectoire (véhicule non spatial) [Termes IGN] transport collectif [Termes IGN] transport routier [Termes IGN] transport urbain [Termes IGN] visualisation de données [Vedettes matières IGN] Géovisualisation Résumé : (auteur) We present a new viewpoint-based approach to improving the exploration effects and efficiency of trajectory datasets. Our approach integrates novel trajectory visualization techniques with algorithms for selecting optimal viewpoints to explore the generated visualization. Both the visualization and the viewpoints will be represented in the form of KML, which can be directly rendered in most of off-the-shelf GIS platforms. By playing the viewpoint sequence and directly utilizing the components of GIS platforms to explore the visualization, the overview status, detailed information, and the time variation characteristics of the trajectories can be quickly captured. A case study and a usability experiment have been conducted on an actual public transportation dataset, justifying the effectiveness of our approach. Comparing with the basic exploration approach without viewpoints, we find our approach increases the speed of information retrieval when analyzing trajectory datasets, and enhances user experiences in 3D trajectory exploration. Numéro de notice : A2017-149 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.jvlc.2017.04.001 Date de publication en ligne : 10/04/2017 En ligne : http://doi.org/10.1016/j.jvlc.2017.04.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84645 [article]