摘要
在基于点云的地面变形分析中,往往会获取与地面变形监测无关的点云数据,如植被、建筑物和电力线等。为了更好的分析地面变形的程度,需要对非地面点进行剔除。本文应用了一种基于不规则三角网(TIN)的渐进加密滤波算法,并在TerraScan中对该算法进行验证。结果证明该算法非常适用于地表变形监测中滤波处理。
The point cloud data is usually irrelevant to ground deformation monitoring was captured in ground deformation analysis based on point clouds,such as vegetation,bulidings and power line,etc.In order to distinguish the degree of ground deformation effectively,non-terrain point should be rejected.This paper employ the filtering algorithm based on Triangular Irregular Networks,and verify the algorithm in TerraScan.The results well demonstrate this algorithm apply to the filtering of ground deformation monitoring.
出处
《北京测绘》
2016年第6期17-21,共4页
Beijing Surveying and Mapping
关键词
点云
变形分析
TIN
滤波
算法
point cloud
deformation analysis
TIN
filtering
algorithm
