Comparison of terrestrial laser scanning and structure-from-motion photogrammetry for steep slope mapping

Konstantinos G. Nikolakopoulos; Antonis Antonakakis; Aggeliki Kyriou; Ioannis Koukouvelas; Panagiotis Stefanopoulos

doi:10.1117/12.2326175

9 October 2018 Comparison of terrestrial laser scanning and structure-from-motion photogrammetry for steep slope mapping

Konstantinos G. Nikolakopoulos, Antonis Antonakakis, Aggeliki Kyriou, Ioannis Koukouvelas, Panagiotis Stefanopoulos

Author Affiliations +

Proceedings Volume 10790, Earth Resources and Environmental Remote Sensing/GIS Applications IX; 107900F (2018) https://doi.org/10.1117/12.2326175
Event: SPIE Remote Sensing, 2018, Berlin, Germany

Abstract

Both Terrestrial Laser Scanner and Structure from Motion photogrammetry are considered as reliable methods for collecting relief elevation data in the form of dense point clouds. The point density is their common big advantage compared to classical survey measurements. Although both methods produce millions of XYZ points, the manner of collecting data is different resulting in point clouds with serious differences. In the current study these two methodologies for 3D point cloud generation are compared. As a test site is considered a part of a well mapped active landslide in western Greece. In this landslide a terrestrial laser scanner was deployed for the collection of 3D information of the steep slopes. At the same time UAVs flights were performed and dense point clouds were also generated. The derived products from the TLS and UAV are compared and the results are presented.

Citation Download Citation

Konstantinos G. Nikolakopoulos, Antonis Antonakakis, Aggeliki Kyriou, Ioannis Koukouvelas, and Panagiotis Stefanopoulos "Comparison of terrestrial laser scanning and structure-from-motion photogrammetry for steep slope mapping", Proc. SPIE 10790, Earth Resources and Environmental Remote Sensing/GIS Applications IX, 107900F (9 October 2018); https://doi.org/10.1117/12.2326175

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