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On the positional accuracy and maximum allowable scale of UAV-derived photogrammetric products for archaeological site documentation / Juan Antonio Pérez in Geocarto international, vol 34 n° 6 ([15/05/2019])  

Public [article]  inGeocarto international > vol 34 n° 6 [15/05/2019] . - pp 575 - 585 Titre : On the positional accuracy and maximum allowable scale of UAV-derived photogrammetric products for archaeological site documentation Type de document : Article/Communication Auteurs : Juan Antonio Pérez, Auteur ; Gil Rito-Gonçalves , Auteur ; Maria Cristina Charro, Auteur Année de publication : 2019 Article en page(s) : pp 575 - 585 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] chaîne de traitement [Termes IGN] échelle de prise de vue [Termes IGN] Espagne [Termes IGN] image captée par drone [Termes IGN] modèle 3D du site [Termes IGN] modèle numérique de surface [Termes IGN] orthoimage [Termes IGN] précision du positionnement [Termes IGN] semis de points [Termes IGN] site archéologique Résumé : (Auteur) Blending photogrammetric and Structure from Motion techniques with Unmanned Aerial Vehicles (UAV) is a commonly used approach for the documentation and analysis of archaeological sites. Using the dense 3D point clouds generated from these techniques, two main photogrammetric products are created: orthophotos and Digital Surfaces Models (DSM). Depending on the UAV technology, the flight parameters, the topography and land cover of the flown area, DSMs and orthophotos are delivered with varying positional accuracies and output scales. In this paper, the positional accuracy and maximum allowable scale of these products generated by complete automation of flight mode and processing workflow are assessed. Moreover, three known International Mapping Standards (IMS) are validated using independent checkpoints, obtained by geodetic Global Navigation Satellite Systems receivers, in two Spanish study areas. The results show that accurate photogrammetric products adapted to the IMS can be successfully obtained by the automation of the photogrammetric workflow. Numéro de notice : A2019-453 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2017.1421714 Date de publication en ligne : 09/01/2018 En ligne : https://doi.org/10.1080/10106049.2017.1421714 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92841 [article]