[1] Jian Yun, Cunxiao Gao, Shaolan Zhu, et al.. High-peak-power, single-mode, nanosecond pulsed, all-fiber laser for high resolution 3D imaging LIDAR system[J]. Chin Opt Lett, 2012, 10(12): 121402.
[2] Fan Shijun, Zhang Aiwu, Hu Shaoxing, et al.. A method of classification for airborne full waveform LiDAR data based on random forest[J]. Chinese J Lasers, 2013, 40(9): 0914001.
[3] Ji Chengli, Tao Zongming, Hu Shunxing, et al.. Cirrus measurement using three-wavelength lidar in Hefei[J]. Acta Optica Sinica, 2014, 34(4): 0401001.
[4] Zuo Zhiquan, Zhang Zuxun, Zhang Jianqing. Classification of LiDAR point clouds for urban area based on multi-echo region ratio and recognition topology model[J]. Chinese J Lasers, 2012, 39(4): 0414001.
[5] Zhao Yang, Yu Xinxiao. Applicability of 3D laser technology in noninvasive measurement of stand structure in forestry [J]. Laser & Optoelectronics Progress, 2013, 50(7): 071201.
[6] G Sithole, G Vosselman. Experimental comparison of filter algorithms for bare-Earth extraction from airborne laser scanning point clouds[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2004, 59(1): 85-101.
[7] G Vosselman. Slope based filtering of laser altimetry data[J]. International Archives of Photogrammetry and Remote Sensing, and Spatial Information Sciences, 2000, 33(B3): 935-942.
[8] Wu Congcong, Lu Xiaoping, Li Guoli, et al.. Research on filtering algorithm for LiDAR data based on TIN[J]. Bulletin of Surveying and Mapping, 2013, (3): 32-35.
[9] P Axelsson. DEM generation from laser scanner data using adaptive TIN models[J]. International Archives of Photogrammetry. Remote Sensing and Spatial Information Sciences, 2000, 33(B4): 111-118.
[10] K Zhang, S Chen, D Whitman, et al.. A progressive morphological filter for removing nonground measurements form airborne LIDAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41(4): 872-882.
[11] Changjun Liu, Jian Li, Shunfu Zhang, et al.. A point clouds filtering algorithm based on grid partition and moving least squares[J]. Procedia Engineering, 2012, 28: 476-482.
[12] D Mongus, B Zalik. Parameter-free ground filtering of LiDAR data for automatic DTM generation[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2012, 67: 1-12.
[13] Zhao Mingbo, He Jun, Tian Junsheng, et al.. Ladar data filtering method based on improved progressive multi-scale mathematic morghology[J]. Acta Optica Sinica, 2013, 33(3): 0328001.
[14] Q Chen, P Gong, D Baldocchi, et al.. Filtering airborne laser scanning data with morphological methods[J]. Photogrammetric Engineering & Remote Sensing, 2007, 73(2): 175-185.
[15] J Zhang, X Lin. Filtering airborne LiDAR data by embedding smoothness-constrained segmentation in progressive TIN densification[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2013, 81: 44-59.
[16] T J Pingel, K C Clarke, W A McBride. An improved simple morphological filter for the terrain classification of airborne LIDAR data[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2013, 77: 21-30.
[17] L Cheng, W Zhao, P Han, et al.. Building region derivation from LiDAR data using a reversed iterative mathematic morphological algorithm [J]. Opt Communications, 2013, 286: 244-250.
[18] Luo Yiping, Jiang Ting, Gong Zhihui, et al.. An adaptive and multi-scale mathematic morghological filter for point cloud data filtering[J]. Journal of Geomatics Science and Technology, 2009, 26(6): 426-429.
[19] Zhou Xiaoming. Research and Application of Airborne LiDAR Point Cloud Data Filters[D]. Zhengzhou: People′s Liberation Army Information Engineering University, 2011.
[20] Gong Liang, Zhang Yongsheng, Li Zhenguo, et al.. A filtering method of airborne LiDAR data based on hierarchical pseudo-grid concept and slope threshold[J]. Science of Surveying and Mapping, 2012, 37(1): 101-103.