LiDAR point cloud ground filtering algorithm in dense and low vegetation area
YAN Yueguan, CHEN Zhongzhang, SUN Yang, LI Zezheng, YAO Chengzhi
Bulletin of Surveying and Mapping . 2021, (7): 1 -5 .  DOI: 10.13474/j.cnki.11-2246.2021.0199