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Aerial image mosaicking with aid of vector roads / D. Wang in Photogrammetric Engineering & Remote Sensing, PERS, vol 78 n° 11 (November 2012)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 78 n° 11 (November 2012) . - pp 1141 - 1150 Titre : Aerial image mosaicking with aid of vector roads Type de document : Article/Communication Auteurs : D. Wang, Auteur ; Y. Wan, Auteur ; J. Xiao, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 1141 - 1150 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] appariement de réseaux [Termes IGN] chemin le moins coûteux, algorithme du [Termes IGN] données vectorielles [Termes IGN] image aérienne [Termes IGN] mosaïquage d'images [Termes IGN] réseau routier [Termes IGN] squelettisation Résumé : (Auteur) This paper proposes a novel approach for using vector roads to aid in the generation of seamline networks for aerial image mosaicking. A representative seamline is extracted as follows. First, the straight skeleton of the overlapping area of adjacent images is extracted. Second, vector roads in the overlapping regions are overlaid with the extracted skeleton to build a weighted graph G (V, E). Dijkstra's algorithm is applied to find the lowest-cost path that connects two intersections of the polygons of two adjacent images. The lowest-cost path is considered as a seamline candidate. Finally, the seamline candidate is refined by considering its surrounding pixels. The refined seamline is employed as the final seamline. The resultant seamlines commonly follow the centerlines of roads as much as possible, and the mosaic image appears more seamless. Moreover, the vector-based approach is typically more efficient than the existing raster-based approaches: the vector-based approach is nearly ten times faster than a raster-based representative. Numéro de notice : A2012-582 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.78.11.1141 En ligne : https://doi.org/10.14358/PERS.78.11.1141 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32028 [article]