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GIS-augmented video surveillance / A. Milosavljevic in International journal of geographical information science IJGIS, vol 24 n° 9 (september 2010)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 24 n° 9 (september 2010) . - pp 1415 - 1433 Titre : GIS-augmented video surveillance Type de document : Article/Communication Auteurs : A. Milosavljevic, Auteur ; D. Rancic, Auteur ; A. Rancic, Auteur Année de publication : 2010 Article en page(s) : pp 1415 - 1433 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] caméra de surveillance PTZ [Termes IGN] réalité augmentée [Termes IGN] SIG 3D [Termes IGN] système d'information géographique [Termes IGN] vidéo numérique [Termes IGN] zone urbaine Résumé : (Auteur) Registration in augmented reality is a process that merges virtual objects generated by a computer with real-world images captured by a camera. In this article, we present a method for registration of geospatial data applicable to outdoor video surveillance systems consisting of several PTZ cameras. PTZ is an abbreviation for pan-tilt-zoom, and in the terminology of video surveillance it indicates cameras that can rotate in the horizontal (pan) and vertical planes (tilt) and change their level of magnification (zoom). Registration is based on transforming these relative camera view parameters into the absolute position, orientation and field of view required by the three-dimensional geographic information systems (3D GISs). Once the 3D GIS and camera views are aligned, it is possible to identify geospatial objects from the camera image, as well as to overlap the virtual scene with the real one. In addition, inverse transformation of the view parameters allows for selecting and pointing the appropriate camera to some geo-referenced feature or event. Based on the proposal, we developed GeoScopeAVS, a GIS-based system for augmented video surveillance and suggested application of such a system in emergency situation management and urban planning. Numéro de notice : A2010-407 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658811003792213 En ligne : https://doi.org/10.1080/13658811003792213 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30600 [article]

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