Proceedings on Engineering Sciences | 2026
Authors: González-Jaramillo V.; Gaona M.P.A.
DOI: 10.24874/PES08.01B.022
Journal: Proceedings on Engineering Sciences
Year: 2026
Publisher: Faculty of Engineering, University of Kragujevac
Document Type: Article
Open Access: All Open Access; Gold Open Access; Green Open Access
Cited by: 0
This study focuses on the application of aerial photogrammetry techniques using drone-acquired data, aimed at generating thematic mapping of urban infrastructure. For this purpose, the DJI Mavic 2 Pro drone was used; flights were conducted at different altitudes with overlaps between 70% and 80% in an area of approximately 20 hectares, allowing the capture of a high number of high-resolution images (less than 10 cm). These images were processed using Pix4D Mapper software, which, through Structure from Motion and Multi-View Stereo techniques, generated an orthophoto and a dense point cloud. Subsequently, the data was filtered to discard elements not belonging to the ground, enabling the creation of Digital Elevation Models and Surface Models. The incorporation of control points using GPS-RTK and the use of tools such as QGIS and Fusion software ensured the production of highly precise outputs, as evidenced by a very low Root Mean Square Error. Based on these models, contour lines and thematic maps were generated, facilitating a detailed analysis of the infrastructure within the study area. The results demonstrate that the use of UAVs in conjunction with photogrammetry techniques is an effective and low-cost alternative to traditional methods, optimizing the update and accuracy of cartography, especially in areas with difficult access. © 2026 Published by Faculty of Engineering.
Digital Elevation Models; GIS; Photogrammetry; Thematic Mapping; UAV