Naslov
IMPROVING VERTICAL ACCURACY OF UAV DIGITAL SURFACE MODELS BY INTRODUCING TERRESTRIAL LASER SCANS ON A POINT-CLOUD LEVEL

Autori
Ivelja, T. ; Bechor, B. ; Hasan, O. ; Miko, S. ; Sivan, D. ; Brook, A.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
The International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences / - : Copernicus Publications, 2020, 457-463

Skup
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Congress 2020)

Mjesto i datum
Nica, Francuska, 31.08.2020. - 02.09.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Vertical accuracy, DSM, UAV, TLS, point cloud, SfM workflow

Sažetak
Digital Surface Models (DSM) generated by image- based scene reconstruction from Unmanned Aerial Vehicle (UAV) and Terrestrial Laser Scanning (TLS) point clouds are highly distinguished in terms of resolution and accuracy. This leads to a situation where users have to choose the most beneficial product to fulfill their needs. In the current study, these techniques no longer compete but complement each other. Experiments were implemented to verify the improvement of vertical accuracy by introducing different amounts and configurations of Terrestrial Laser scans in the photogrammetric Structure from Motion (SfM) workflow for highresolution 3D-scene reconstruction. Results show that it is possible to significantly improve (~ 49% ) the vertical accuracy of DSMs by introducing a TLS point clouds. However, accuracy improvement is highly associated with the number of introduced Ground Control Points (GCP) in the SfM workflow procedure.

Izvorni jezik
Engleski

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