Using low-cost unmanned air vehicle (UAV) for landslide monitoring – case studies from the Moravian-Silesian region, the Czech Republic

0538823 - ÚGN 2021 CZ eng A - Abstract
Seidl, J. - Kačmařík, M. - Šádek, P. - Kajzar, Vlastimil
Using low-cost unmanned air vehicle (UAV) for landslide monitoring – case studies from the Moravian-Silesian region, the Czech Republic.
Symposium GIS Ostrava 2020. Ostrava: VSB - Technical University of Ostrava, 2020 - (Kačmařík, M.; Růžička, J.). ISSN 1213-239X.
[Symposium GIS Ostrava 2020 - UAV in Smart City and Smart Region. 18.03.2020-20.03.2020, Ostrava]
Institutional support: RVO:68145535
Keywords : UAV * landslide * dynamics monitoring * 3D point cloud * terrestrial laser scanning
OECD category: Physical geography
http://gisak.vsb.cz/GIS_Ostrava/GIS_Ova_2020/proceedings/author.html

Unmanned Air Vehicles (UAV) proved to bean efficient tool for mapping and monitoring of various environmentalphenomena including landslides. In this study a utilization of a low-cost multi-copterUAV for monitoring of two active landslides in the Moravian-Silesian region of the Czech Republic is presented. Time series of 3D point clouds reconstructed from RGB imagesusing Structure-from-Motion (SfM) photogrammetryand derived raster digital terrain models are used to evaluate landslide dynamics and also their own quality and reproducibility. At one of the studiedlandslides, 3D point cloud acquired by an UAV is also confrontedwith a 3D point cloud collected by a terrestrial laser scanning.Realized analysis show that an accuracyof 3D point clouds acquired by a low-cost UAV can reach up to several centimetres in non-vegetated areas.
Permanent Link: http://hdl.handle.net/11104/0316537