期刊论文

Han, Xianquan

英文

IEEE ACCESS

2169-3536

2017

5

26734-26742

10.1109/ACCESS.2017.2771201

This work was supported in part by the National Natural Science Foundation of China under Grant 41301434, Grant 51509007, and Grant 51379023, and in part by the Open Foundation of Basic Scientific Research Operating Expenses of Central-Level Public Academies and Institutes under Grant CKSF2015020/GC and Grant CKSF2016033/GC.

本校为其他机构

This paper presents an effective approach for rock mass discontinuity extraction based on the terrestrial LiDAR scanning 3-D point clouds. First, a Quadtree-Octree index method that retained the adjacency relationship of rock point clouds was proposed to organize point cloud data in a high-efficiency manner. Second, the normal vector (NV) calculation was directly conducted by the local triangulated irregular networks together with eight neighborhood areas. Third, a double-clustering strategy was developed based on the Quadtree-Octree index and ...