摘要
为了进行平地区域原基础测绘产品高程的更新,我省进行了针对平地区域的机载LiDAR测高项目,为了获取高精度的DSM和DEM成果,在实际生产中开展了机载LiDAR数据处理及DEM成果的制作方法研究。本文将利用TerraSolid软件,从LiDAR点云数据的高程精度控制、点云滤波分类要求和如何利用特征线进行无点云数据区域的DEM精度控制等关键技术方面进行研究。
In order to update elevation of the plain areas in fundamental surveying and mapping products, a project about airborne LiDAR data processing was implemented for the acquisition of DSM and DEM with higher precision. In this article, the main key technologies are studied in TerraSolid software, including the height accuracy LiDAR point cloud data control, point cloud classification requirements and how to use the filtering feature lines to control DEM precision in some area without point cloud data key such as non-regional aspects of point cloud data.
出处
《地理信息世界》
2014年第1期111-115,共5页
Geomatics World
关键词
机载LIDAR
遥感
点云处理
DEM
Airborne LiDAR
Remote Sensing
Point Cloud Data Processing
DEM
