[1] 张爱武, 肖涛, 段乙好. 一种机载LiDAR点云分类的自适应特征选择方法[J]. 激光与光电子学进展, 2016, 53(8): 082802.

    Zhang A W, Xiao T, Duan Y H. A method of adaptive feature selection for airborne LiDAR point cloud classification[J]. Laser & Optoelectronics Progress, 2016, 53(8): 082802.

[2] 惠振阳, 胡友健. 基于LiDAR数字高程模型构建的数学形态学滤波方法综述[J]. 激光与光电子学进展, 2016, 53(8): 080001.

    Hui Z Y, Hu Y J. Review on morphological filtering algorithms based on LiDAR digital elevation model construction[J]. Laser & Optoelectronics Progress, 2016, 53(8): 080001.

[3] 惠振阳, 程朋根, 官云兰, 等. 机载LiDAR点云滤波综述[J]. 激光与光电子学进展, 2018, 55(6): 060001.

    Hui Z Y, Cheng P G, Guan Y L, et al. Review on airborne LiDAR point cloud filtering[J]. Laser & Optoelectronics Progress, 2018, 55(6): 060001.

[4] 惠振阳, 胡友健, 康妍斐. 基于反射强度偏度平衡的道路点云提取算法[J]. 激光与光电子学进展, 2018, 55(2): 022801.

    Hui Z Y, Hu Y J, Kang Y F. Road point cloud extraction algorithm based on reflection intensity skewness balancing[J]. Laser & Optoelectronics Progress, 2018, 55(2): 022801.

[5] 黄作维, 刘峰, 胡光伟. 基于多尺度虚拟格网的LiDAR点云数据滤波改进方法[J]. 光学学报, 2017, 37(8): 0828004.

    Huang Z W, Liu F, Hu G W. Improved method for LiDAR point cloud data filtering based on hierarchical pseudo-grid[J]. Acta Optica Sinica, 2017, 37(8): 0828004.

[6] 李峰, 崔希民, 袁德宝, 等. 改进坡度的LiDAR点云形态学滤波算法[J]. 大地测量与地球动力学, 2012, 32(5): 128-132.

    Li F, Cui X M, Yuan D B, et al. Slope improved morphological filtering algorithm for LiDAR point clouds[J]. Journal of Geodesy and Geodynamics, 2012, 32(5): 128-132.

[7] 隋立春, 张熠斌, 张硕, 等. 基于渐进三角网的机载LiDAR点云数据滤波[J]. 武汉大学学报(信息科学版), 2011, 36(10): 1159-1163.

    Sui L C, Zhang Y B, Zhang S, et al. Filtering of airborne LiDAR point cloud data based on progressive TIN[J]. Geomatics and Information Science of Wuhan University, 2011, 36(10): 1159-1163.

[8] 严剑锋, 邓喀中, 邢正全. 基于最小二乘拟合的三维激光扫描点云滤波[J]. 测绘通报, 2013( 5): 43- 46.

    Yan JF, Deng KZ, Xing ZQ. 3D laser scanning point cloud filtering based on least squares fitting[J]. Bulletin of Surveying and Mapping, 2013( 5): 43- 46.

[9] 谷延超, 范东明, 余彪, 等. 基于形态学与区域生长的机载LiDAR点云数据滤波[J]. 大地测量与地球动力学, 2015, 35(5): 811-815.

    Gu Y C, Fan D M, Yu B, et al. Filtering of airborne LiDAR point cloud data based on mathematical morphology and region growing[J]. Journal of Geodesy and Geodynamics, 2015, 35(5): 811-815.

[10] Zhang J X, Lin X G. Filtering airborne LiDAR data by embedding smoothness-constrained segmentation in progressive TIN densification[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2013, 81: 44-59.

[11] Sithole G, Vosselman G. Experimental comparison of filter algorithms for bare-Earth extraction from airborne laser scanning point clouds[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2004, 59(1/2): 85-101.

[12] 曾繁轩, 李亮. 基于Lagrange算子与曲面拟合的点云滤波研究[J]. 激光杂志, 2016, 37(8): 75-78.

    Zeng F X, Li L. Research on point cloud filtering based on Lagrange operator and surface fitting[J]. Laser Journal, 2016, 37(8): 75-78.

[13] 刘志青, 李鹏程, 张保明, 等. 抗差估计在机载激光雷达点云滤波中的应用[J]. 激光与光电子学进展, 2015, 52(12): 122801.

    Liu Z Q, Li P C, Zhang B M, et al. Application of robust estimation to airborne lidar point cloud filtering[J]. Laser & Optoelectronics Progress, 2015, 52(12): 122801.

[14] Hu H, Ding Y L, Zhu Q, et al. An adaptive surface filter for airborne laser scanning point clouds by means of regularization and bending energy[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2014, 92: 98-111.

[15] Chen Q, Gong P, Baldocchi D, et al. Filtering airborne laser scanning data with morphological methods[J]. Photogrammetric Engineering & Remote Sensing, 2007, 73(2): 175-185.

[16] Li Y, Wu H Y, Xu H W, et al. A gradient-constrained morphological filtering algorithm for airborne LiDAR[J]. Optics & Laser Technology, 2013, 54: 288-296.

[17] Li Y, Yong B, Wu H Y, et al. Filtering airborne lidar data by modified white top-hat transform with directional edge constraints[J]. Photogrammetric Engineering & Remote Sensing, 2014, 80(2): 133-141.

[18] Chen D, Zhang L Q, Wang Z, et al. A mathematical morphology-based multi-level filter of LiDAR data for generating DTMs[J]. Science China Information Sciences, 2013, 56(10): 1-14.

[19] Axelsson P. DEM generation from laser scanner data using adaptive TIN models[J]. International Archieves of Photogrammetry and Remote Sensing, 2000, 33(B4/1): 110-117.