Technical gazette, Vol. 27 No. 4, 2020.
Original scientific paper
https://doi.org/10.17559/TV-20190913094430
Comparison of DSMs Generated Using High Resolution UAV Images in an Archaeological Site
Servet Yaprak
orcid.org/0000-0001-9593-5201
; Gaziosmanpasa University, Department of Geomatics, Taslıciftlik Campus, 60100, Tokat-Turkey
Abstract
Unmanned Ariel Vehicles (UAVs) are increasingly used for topographic mapping. The use of UAVs in the photogrammetric survey of archaeological sites provides extensive opportunities for the creation of documentation. By using this technology, a detailed and precise digital map of historical and cultural areas can be produced, digital terrain model, orthophotos of the whole area can be produced and inaccessible parts of the historical area such as towers, walls, steep slopes can be documented. For this study, 542 high-resolution images were captured with a UAV from approximately 20 m high. The high-resolution images were processed using Agisoft Photoscan and Pix4Dmapper Pro software to generate point clouds and Digital Surface Models (DSMs). Both software packages produced GSD values are between 0,401 - 0.425 cm/pixel. When comparing the cross sections obtained from the DSMs obtained from the two software packages, it was seen that the Pix4D software was more successful, especially in the sections produced from surfaces, such as ducts and pits.
Keywords
agisoft; Digital Surface Model (DSM); Pix4D; Point Cloud; Unmanned Aerial Vehicle
Hrčak ID:
242329
URI
Publication date:
15.8.2020.
Visits: 1.698 *