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A slope-based method for matching elevation surfaces / D. Streutker in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 7 (July 2011)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 77 n° 7 (July 2011) . - pp 721 - 732 Titre : A slope-based method for matching elevation surfaces Type de document : Article/Communication Auteurs : D. Streutker, Auteur ; N. Glenn, Auteur ; R. Shresta, Auteur Année de publication : 2011 Article en page(s) : pp 721 - 732 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] analyse comparative [Termes IGN] appariement de données localisées [Termes IGN] appariement géométrique [Termes IGN] données lidar [Termes IGN] hauteur de vol [Termes IGN] Idaho (Etats-Unis) [Termes IGN] pente [Termes IGN] reconstruction d'objet [Termes IGN] recouvrement d'images Résumé : (Auteur) A method is presented for the co-registration of overlapping elevation surfaces based on local slope analysis. Comparison and statistical analysis of local slope versus local elevation difference between overlapping surfaces allows for the estimation of both vertical and horizontal offsets between the two surfaces. This method is then used to re-align the flightlines of a Light Detection and Ranging (lidar) dataset collected in southern Idaho resulting in a dataset with significantly higher accuracy than the original. The relative horizontal accuracy is doubled, with a final value of approximately 25 to 30 cm, while the relative vertical accuracy is improved by several centimeters to a final valm of approximately 6 to 7 cm. Numéro de notice : A2011-315 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.77.7.743 En ligne : https://doi.org/10.14358/PERS.77.7.743 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31094 [article]