摘要
机载激光雷达(LiDAR)系统可以快速获取高精度的地面点云数据,可以快速生成数字高程模型(DEM)。但是基于原始水体点云数据直接构建DEM效果较差,针对这个问题,论文提出了一种双线河水体点云填充方法,对缺失的河道内点云数据进行填充,并设计开发了河流优化填充模块,实现了双线河水体具有上下游特征的DEM构建效果。
The airborne light detection and ranging(LiDAR)system can acquire high-precision ground point cloud data and generate digital elevation model(DEM)quickly.But it is not effective to construct DEM directly based on the original point cloud data of water.In response to this problem,the paper proposed a point cloud filling method of double-line river.The lack of point cloud data were filled in the river,and a river optimization filling module was designed and developed.The DEM construction effect of double river body with upstream and downstream characteristics was realized.
作者
梁静
陈会明
常文蝶
LIANG Jing;CHEN Huiming;CHANG Wendie(Henan College of Surveying and Mapping,Zhengzhou Henan 451450,China;Henan Collaborative Innovation Center of Geo-Information Technology for Smart Central Plains,Zhengzhou Henan 450052,China;Key Laboratory of Spatiotemporal Information Perception and Fusion Technology,Ministry of Land and Resources,Zhengzhou Henan 450052,China)
出处
《北京测绘》
2023年第3期454-459,共6页
Beijing Surveying and Mapping
基金
河南省协同创新中心、时空感知与智能处理自然资源部重点实验室联合基金(212108)。
关键词
机载激光雷达
数字高程模型
水体点云
点云填充
点云内插
airborne light detection and ranging(LiDAR)
digital elevation model(DEM)
water point-cloud
point-cloud filling
interpolation point cloud
