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A "new hybrid" modelling for geometric processing of Radarsat-2 data without user's GCP / Thierry Toutin in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 6 (June 2011)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 77 n° 6 (June 2011) . - pp 601 - 608 Titre : A "new hybrid" modelling for geometric processing of Radarsat-2 data without user's GCP Type de document : Article/Communication Auteurs : Thierry Toutin , Auteur ; K. Omari, Auteur Année de publication : 2011 Article en page(s) : pp 601 - 608 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] GPS-INS [Termes IGN] image Radarsat [Termes IGN] modèle géométrique de prise de vue [Termes IGN] modèle par fonctions rationnelles [Termes IGN] traitement d'image radar Résumé : (Auteur) The objective of the research study is to use the synergy of 3D empirical (Rational Function Model (rfm) and physical (Toutin's) geometric models to develop a "new hybrid" model for the geometric processing of Radarsat-2 data without collecting ground control point (GCP). After independently evaluating the processing and the accuracy of each model using accurate differential GPS points, RFM was thus used to generate few "virtual" rfm points at the highest elevation of the study site. In addition to information of the metadata, these "virtual" points were input as GCPs in Toutin's model. This new hybrid model consistently achieved pixel accuracy, with better results for steep looking angles than the two other models. Its main advantage was, in addition, to be used without collecting GCP, increasing the applicability of Radarsat-2 data in remote areas. Numéro de notice : A2011-256 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.77.6.601 En ligne : https://doi.org/10.14358/PERS.77.6.601 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31034 [article]