广西工学院学报2011，Vol.22Issue(4)：65-68,4.
基于扫描线坡度统计的LiDAR滤波算法
LiDAR Filtering Based on Slope Statistic of Scanning Line
摘要
Abstract
This paper proposes a new filter based on slope statistic to extract the ground points from airborne LiDAR data. For the high point density in scanning line, the method transferred two-dimensional filtering into one-dimensional, which improved the algorithm＇s efficiency greatly. Firstly, slope between two points in scanning line had been worked out. By slope statistic, non-ground points were removed. Secondly, curved surface fitting was used to correct the wrong detection of ground points. Reference data sets provided by ISPRS were selected to test the filter based on slope statistic. The data came from city areas. The results showed that the filter can remove most of the non-ground points effectively.关键词
LiDAR/扫描线/坡度统计/滤波Key words
lidar/scanning line/slope statistic/filtering分类
天文与地球科学引用本文复制引用
杨晓云,梁鑫..基于扫描线坡度统计的LiDAR滤波算法[J].广西工学院学报,2011,22(4):65-68,4.基金项目
广西教育厅科研项目(200911LX161) （200911LX161）
广西工学院科学科研项目(院科自0840209)资助. （院科自0840209）
