The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLIII-B2-2020
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2020, 1081–1089, 2020
https://doi.org/10.5194/isprs-archives-XLIII-B2-2020-1081-2020
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2020, 1081–1089, 2020
https://doi.org/10.5194/isprs-archives-XLIII-B2-2020-1081-2020

  14 Aug 2020

14 Aug 2020

ABOUT PHOTOGRAMMETRIC UAV-MAPPING: WHICH ACCURACY FOR WHICH APPLICATION?

A. Gressin1, J. Vallet2, and M. Bron1 A. Gressin et al.
  • 1University of Applied Sciences Western Switzerland (HES-SO / HEIG-VD), Insit Institute, Switzerland
  • 2Helimap System SA, Switzerland

Keywords: UAV, Photogrammetry, Mapping, Accuracy, Benchmark

Abstract. UAV surveys have become more and more popular over the last few years, driven by manufacturers and software suppliers who promise high accuracy at low cost. But, what are the real possibilities offered by this kind of sensor? In this article, we investigate in detail the possibilities offered by photogrammetric UAV mapping solutions through numerous practical experiments and compare them to a reference high grade LiDAR-Photogrammetric acquisition. This paper first focuses on aerial triangulation and dense matching accuracy comparison of different data acquisition units (2 types of camera) and processing softwares (1 open source and 2 proprietary softwares). Finally, the opportunities offered by these different approaches are studied in detail on standard aerial applications such as power lines detection, forest and urban areas mapping, in comparison with our reference dataset.