Analyzing the Effectiveness of Photogrammetry Software in Calculating Aerial Triangulation and in Spatial Data Production from Drone Images

Autor: Ahmed EL ashiry
Jazyk: Arabic<br />English
Rok vydání: 2024
Předmět:
Zdroj: JES: Journal of Engineering Sciences, Vol 52, Iss 2, Pp 53-70 (2024)
Druh dokumentu: article
ISSN: 1687-0530
2356-8550
DOI: 10.21608/jesaun.2024.248129.1287
Popis: Drones are used by surveyors as an alternative to traditional methods of obtaining orthophoto maps and large-scale topographical maps, but several factors affect the accuracy of its data, one of them is software used in image processing. Because there are many types of software, choosing one of them is a real problem in survey projects using drones. Processing software is divided into commercial and open source software. Commercial software is a black box situation, which highlights the challenge of isolating accurate sources of errors and judging the accuracy of processing products.In this research, the capabilities of the commercial software Pix4Dmapper, Agisoft Metashape, and 3DF Zephyr Aerial were compared in calculating the aerial triangulation of the image blocks taken by drones, with a comparison of the capabilities of these softwares in getting the most important spatial products for surveyors from these images (Digital Elevation Model and Orthophoto). The results showed that Pix4Dmapper was able to perform aerial triangulation more accurate than Agisoft Metashape and 3DF Zephyr Aerial, with great convergence between the results of Agisoft Metashape and 3DF Zephyr A. The results also showed that 3DF Zephyr Aerial had extracted the densest point cloud. Another finding is that Pix4Dmapper produced the most accurate orthophoto and took the shortest processing time, and that the Agisoft Metashape interface is more flexible and user-friendly than the rest of the tested software.
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