机载LiDAR点云数据自动生成DEM的方法与精度评价  

Automatic Generation Method for DEM Based on Airborne LiDAR Point Cloud Data and Its Accuracy Assessment

作　　者：赵桂华 邹晓亮 郭丽 

机构地区：[1]西安测绘总站,陕西西安710054

出　　处：《地理空间信息》2017年第9期9-12,共4页Geospatial Information

基　　金：西安科技创新工作站资助项目(2014-CX0452)

摘　　要：设计了一种点云数据快速处理自动生成DEM的算法,介绍了滤波结果的评价方法以及通过标准DEM评价内插的DEM整体精度的方法;并选用河北承德地区的机载激光LiDAR点云数据进行了实验。结果表明,数据处理结果具有较高的精度,为激光点云数据自动生成DEM提供了一种有效的技术途径。This paper designed an advanced workflow and algorithm for the rapid processing of point cloud data. The paper introduced the assessment method that used in filtering result. The accuracy assessment was proposed via comparing the standard DEM with the results of interpolated DEM. And then, the paper took the airborne LiDAR point cloud data in Chengde for example. The experimental result shows that the data processing results have high accuracy. The study can provide an effective way for generating DEM automatically by LiDAR point cloud data.

关 键 词：LIDAR点云 DEM 滤波 DEM内插 滤波结果评价 精度评价 

分 类 号：P23[天文地球—摄影测量与遥感]