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Automatic reconstruction of regular buildings using a shape-based balloon snake model / Diaro Yari in Photogrammetric record, vol 29 n° 146 (June - August 2014)  

Public [article]  inPhotogrammetric record > vol 29 n° 146 (June - August 2014) . - pp 187 - 205 Titre : Automatic reconstruction of regular buildings using a shape-based balloon snake model Type de document : Article/Communication Auteurs : Diaro Yari, Auteur ; Mehdi Mokhtarzade, Auteur ; Hamid Ebadi, Auteur Année de publication : 2014 Article en page(s) : pp 187 - 205 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] détection de contours [Termes IGN] détection du bâti [Termes IGN] image numérique [Termes IGN] modèle géométrique du bâti [Termes IGN] reconstruction 3D du bâti Résumé : (Auteur) Buildings are regarded as the most prominent man-made objects: hence, their automatic extraction from aerial and satellite images has attracted the interest of photogrammetric research communities. In this paper, a balloon snake, a well-known active contour model, was developed for the precise extraction of building boundaries. Traditional active contours are highly sensitive to image data and are problematic when building boundaries are weakened, usually due to occlusions. To improve the efficiency of the traditional balloon snake model, a shape-based balloon snake model was introduced where knowledge about the expected geometrical shape of buildings was modelled and applied to the traditional snake representation. Implementation of the proposed algorithm confirmed its efficiency in the precise extraction of building boundaries. Experimental results and the qualitative and quantitative evaluations demonstrate the potential of the proposed shape-based balloon snake model and its superiority over traditional models. Numéro de notice : A2014-280 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/phor.12060 Date de publication en ligne : 15/06/2014 En ligne : https://doi.org/10.1111/phor.12060 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33183 [article]