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http://dx.doi.org/10.5762/KAIS.2020.21.10.197

Assessment of LODs and Positional Accuracy for 3D Model based on UAV Images  

Lee, Jae One (Dept. of Civil Engineering, Dong-A University)
Kim, Doo Pyo (Dept. of Civil Engineering, Dong-A University)
Sung, Sang Min (Dept. of Civil Engineering, Dong-A University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.10, 2020 , pp. 197-205 More about this Journal
Abstract
Compared to aerial photogrammetry, UAV photogrammetry has advantages in acquiring and utilizing high-resolution images more quickly. The production of 3D models using UAV photogrammetry has become an important issue at a time when the applications of 3D spatial information are proliferating. Therefore, this study assessed the feasibility of utilizing 3D models produced by UAV photogrammetry through quantitative and qualitative analyses. The qualitative analysis was performed in accordance with the LODs (Level of Details) specified in the 3D Land Spatial Information Construction Regulation. The results showed that the features on planes have a high LoD while features with elevation differences have a low LoD due to the occlusion area and parallax. Quantitative analysis was performed using the 3D coordinates obtained from the CPs (Checkpoints) and edges of nearby structures. The mean errors for residuals at CPs were 0.042 m to 0.059 m in the horizontal and 0.050 m to 0.161 m in the vertical coordinates while the mean errors in the structure's edges were 0.068 m and 0.071 m in horizontal and vertical coordinates, respectively. Therefore, this study confirmed the potential of 3D models from UAV photogrammetry for analyzing the digital twin and slope as well as BIM (Building Information Modeling).
Keywords
UAV(Unmanned Aerial Vehicle); Photogrammetry; High resolution image; 3D model; LoD(Level of Detail);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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