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Ground target tracking and road map extraction / W Koch in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 3-4 (December 2006)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 61 n° 3-4 (December 2006) . - pp 197 - 208 Titre : Ground target tracking and road map extraction Type de document : Article/Communication Auteurs : W Koch, Auteur ; J. Koller, Auteur ; M. Ulmke, Auteur Année de publication : 2006 Article en page(s) : pp 197 - 208 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] classification bayesienne [Termes IGN] extraction du réseau routier [Termes IGN] image aérienne [Termes IGN] image radar [Termes IGN] précision des données [Termes IGN] trafic routier Résumé : (Auteur) For analyzing dynamic scenarios with many ground moving vehicles, airborne Ground Moving Target Indicator (GMTI) radar is well-suited due to its wide-area, all-weather, day/night, and real time capabilities. The generation of GMTI tracks from these data is the backbone for ground surveillance and traffic flow analysis. In case of dense target situations, missing detections and false alarms, Multi-Hypotheses Tracking (MHT) is the method at choice to solve the inherent ambiguities in the data-targets assignment problem. The resulting MHT-tracks are suited to extract road map information which is highly up-to-date and fairly precise. Moreover, their accuracy is quantitatively described. The precision of the extracted road segments can be improved significantly using smoothed or retrodicted tracks. In turn, the extracted road information is exploited for the precise tracking of succeeding road targets. The proposed, fully Bayesian approach is illustrated by a simulated example including Doppler and terrain obscuration, providing hints to the achievable road map accuracies. Numéro de notice : A2006-604 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.09.013 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.09.013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28327 [article]

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