[1] [1] DUAN J M, LI SH Y, WANG CH R, et al.. Research on road boundary and obstacle detection based on LiDAR ［J］. Applied Laser, 2018, 38 (6): 1000-1007. (in Chinese)

[2] [2] CUI X, YAN X T, LI SH P. Denoising of scattered point cloud data preserving features ［J］. Opt. Precision Eng., 2017, 25 (12): 3169-3178. (in Chinese)

[3] [3] CHEN H W, YUAN X C, WU L SH, et al.. Automatic extraction of point cloud feature lines based on curvature mutation analysis ［J］. Opt. Precision Eng., 2019, 27 (5): 1218-1228. (in Chinese)

[4] [4] ZHAO CH, ZHANG B M, YU D X, et al.. Airborne Lidar point cloud classification using transfer learning ［J］. Opt. Precision Eng., 2019, 27 (7): 1601-1612. (in Chinese)

[5] [5] LOU X Y, WANG H, CAI Y F, et al.. Research on real-time road obstacle detection and classification algorithm using 64-line LiDAR ［J］. Automotive Engineering, 2019, 41 (7): 779-754. (in Chinese)

[6] [6] LU X, YAO J, TU J, et al.. Pairwise linkage for point cloud segmentation ［J］. ISPRS Annals of Photogrammetry, Remote Sensing & Spatial Information Sciences, 2016, 3(3).

[7] [7] QIN J R, XU W H, MA H H, et al.. DBSCAN clustering algorithm with adaptive local radius ［J］. Small Microcomputer System, 2018, 39 (10): 2186-2190. (in Chinese)

[8] [8] BOGOSLAVSKYI I, STACHNISS C. Efficient online segmentation for sparse 3D laser scans ［J］. PFG-Journal of Photogrammetry, Remote Sensing and Geoinformation Science, 2017, 85(1): 41-52.

[9] [9] LIU ZH Q, LI P CH, CHEN X W, et al.. Classification of airborne LiDAR point cloud data based on information vector machine ［J］. Opt. Precision Eng., 2016, 24 (1): 210-219. (in Chinese)

[10] [10] WANG CH, ZHANG ZH L, LONG Y, et al.. Research on improved hybrid bounding box collision detection algorithm ［J］. Journal of System Simulation, 2019, 30 (11): 4236-4243. (in Chinese)

[11] [11] CHANG M, PAN LI J, MENG X G, et al.. Research on slope deformation monitoring based on 3D laser scanner ［J］. Geodetics and Geodynamics, 2019, 39 (5): 533-537. (in Chinese)

[12] [12] YUAN H, PANG J K, MO J W. Research on simplified point cloud algorithm based on voxel grid sampling ［J］. Television technology, 2015, 39 (17): 43-47. (in Chinese)

[13] [13] LI Y, WU H Y. Airborne laser scanning data filtering method based on morphological gradient ［J］. Journal of Remote Sensing, 2008, 12 (4): 633-639. (in Chinese)

[14] [14] MIAO Q G, GUO X, SONG J F, et al.. Morphological filtering algorithm of LiDAR point cloud data based on region prediction ［J］. Laser & Optoelectronics Progress, 2015, 52 (1): 011003. (in Chinese)

[15] [15] FAN J J, MA Y Q, SUN A B, et al.. Extraction of contour points of point cloud data lines by pattern vector method ［J］. Opt. Precision Eng., 2019, 27 (7): 1640-1648. (in Chinese)

[16] [16] BOGOSLAVSKYI I, STACHNISS C. Fast range image-based segmentation of sparse 3D laser scans for online operation ［C］. 2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2016: 163-169.

[17] [17] CHENG Z Y, REN G Q, ZHANG Y, et al.. Calibration of external parameters of 3D LiDAR in ground unmanned platform ［J］. Applied Laser, 2019, 39 (1): 113-118. (in Chinese)

[18] [18] LUO ZH F, ZHANG Y, WANG ZH G, et al.. Position calibration of laser ranging sensors in autonomous navigation carts ［J］. Laser & Optoelectronics Progress, 2017, 54 (6): 062802. (in Chinese)

[19] [19] LI M L, LIU SH CH, YANG H, et al.. A bi-level optimized method for Lidar point cloud scene segmentation ［J］. Journal of Surveying and Mapping, 2018, 47 (2): 269-274. (in Chinese)

[20] [20] YU R Y, ZHAO J L, YU L, et al.. Collision detection algorithm combining axis-aligned bounding boxes and space division ［J］. Journal of Image and Graphics, 2018, 23 (12): 1925-1937. (in Chinese)

[21] [21] TANG Y H, HOU J, WU T T, et al.. Hybrid collision detection algorithm based on particle transformation and bounding box ［J］. Journal of Harbin Engineering University, 2018, 39 (10): 1695-1701. (in Chinese)

[22] [22] LIU CH, JIANG X J, SHI H B. A fast double-layer bounding box collision detection algorithm ［J］. Computer and Modernization, 2018 (5): 6-10. (in Chinese)