Study on the application of point cloud denoising in Gobi desert surface

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Hao, Wan Hong^1 ; Fengmiao, Shi^1 ; Qiang, Liu^1 ; Shijun, Li^1 ; Zhen, Guan^1

North-West Institute of Nuclear Technology, Shanxi, Xi'an

710024, China^1

关键词: Bilateral filters;    De-noising;    Filter method;    Gobi desert;    Mechanical systems;    Overlapping regions;    Point cloud;    Surface points;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/2/022011/pdf
DOI  :  10.1088/1755-1315/189/2/022011

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Affected by the noise of desert environment and UAV mechanical system, the surface point cloud data will be mixed with noise points when we extracted the data from photos of UAV with overlapping regions. These noise points will seriously reduce the precision of DEM and DLG. In this paper, we use a denoising combination of two filter methods, Topscan filter is used to remove large-scale noise points and bilateral filter is used to deal with small noise during the surface point cloud. Experiments shows, the denoising combination can remove the noise points and improve the quality of aerophotogrammetry products.