摘要
机载雷达点云的主要应用是生产数字高程模型(Digital Elevation Model,简称DEM)。由于机载雷达所获得的雷达点云包括地面点和非地面点,所以在生产DEM之前要进行非地面点的滤除,在国外很多研究文献提出全自动或半自动的方法用来过滤地物点,保留地面点用以生成数字高程模型。
The main application of light detection and ranging point cloud is the production Digital Elevation Model （ DEM ）. Before producing DEM we must carry on a non - ground filtration because the light detection and ranging point cloud includes ground and non - ground points. In the overseas many research literature proposed the completely automatic or the semiautomatic method to filter the object point, and retain the ground point to produce the digital elevation model.
出处
《测绘与空间地理信息》
2009年第3期81-82,共2页
Geomatics & Spatial Information Technology
关键词
机载雷达
DEM
点云
light detection and ranging
DEM
point cloud
