The Application of Survey Technology Without Drone Control of Unmanned Aerial Vehicle LiDAR for 1∶10000 DEM Date Updating
In the local updating work of the 1∶10000 basic geographic information data updating project in Anhui Province,aiming at the characteristics of heavy workload and high difficulty in the layout of control points in the field,this paper studies the control-free technical method of DEM production by UAV-LiDAR measurement technology,and uses the reliable ground points extracted from the laser point cloud classification results to establish an elevation fitting model to fit the elevation of the converted point cloud and produce DEM.And compared with the accuracy of DEM products produced by traditional point cloud elevation fitting through measured control points.The study show that the accuracy of DEM produced by the control-free technology could meets the requirements of 1∶10000 DEM updating in Anhui Province.
light detection and ranging(LiDAR)digital elevation modelunmanned aerial vehiclereliable ground points
万方数据
维普
