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Comparaison de MNTs générés à partir de données LiDAR terrestre et de photographies aériennes prises à basse altitude
Ouedraogo, Mohamar
2012
 

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Keywords :
terrestrial LiDAR; UAV; DEM
Abstract :
[en] In this presentation we compare DEMs generated using terrestrial LIDAR and UAV data. The study site is a small agricultural watershed located near the region of Gembloux in Belgium. Terresttrial LiDAR data was collected using Trimble GX trought 14 scans. After correcting errors by using statistical approach, scans are meshed to generate a DEM of 1 m x 1 m resolution. UAV data was collected using the X100 UAV commercialized by gatewing. Data was processed in the open source MICMAC software to generate a DEM of 1 m x 1 m resolution. DEMs comparison to ground control points surveyed by RTK GPS, showed that DEM generated using terrestrial LiDAR data is the most precise with a RMSE of 4.9 cm compare to the DEM from UAV data which RMSE was 9.0 cm.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Ouedraogo, Mohamar ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Language :
French
Title :
Comparaison de MNTs générés à partir de données LiDAR terrestre et de photographies aériennes prises à basse altitude
Alternative titles :
[en] Comparison of DEMs generated from terrestrial LiDAR and Unmaned Aerial Vehicle data
Publication date :
29 November 2012
Number of pages :
20
Event name :
Geoscience Phd day
Event organizer :
Institut de géographie
Event place :
Liège, Belgium
Event date :
29 novembre 2012
Available on ORBi :
since 05 December 2012

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