DEM Generation from Airborne Lidar Data

摘要：

Digital surface model (DSM)can be acquired from airborne Lidar (light detection and ranging)directly. But for the production of digital elevation model (DEM)from the point cloud, the filtering of the point cloud should be carried out in order to remove points representing surface of non-ground objects. According to the deficiencies of slope based method and intensity information of Lidar data, a novel filtering algorithm for Lidar data that combining range information and intensity information is presented in this paper. This method can improve precision and efficiency of filtering, and is very suitable for Lidar data of complex areas. Experiment results show that the proposed method can remove objects in complex areas effectively and rapidly.

关键词： airborne Lidar DEM region growing intensity

作者: F.Yuan J.X.Gao J.X.Zhang L.Zhang

作者单位: School of Environment and Spatial Information,Chinese University of Mining and Technology,Sanhuannan School of Environment and Spatial Information,Chinese University of Mining and Technology,Sanhuannan Key Laboratory of Mapping from Space of State Bureau of Surveying and Mapping,Chinese Academy of Sur

会议类型: 国际会议

会议名称: 第六届国际数字地球会议

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2009-09-09（万方平台首次上网日期，不代表论文的发表时间）