[1] TANG F F, RUAN Z M, LIU X. Research of filtering method for urban airborne LiDAR data[J]. Laser Technology, 2011, 35(4):527-530(in Chinese).
[2] SHAN J, APARAJITAN S. Urban DEM generation from raw lidar data:A labeling algorithm and its performance[J]. Photogrammetric Engineering & Remote Sensing, 2005, 71(2):217-226.
[3] LIU C, CHEN H Y, WU H S. Data processing and feature extraction of LiDAR remote sensing[M]. Beijing:Science Press, 2010:189-195(in Chinese).
[4] XUELIAN M, NATE C, KAIGUANG Z. Ground filtering algorithms for airborne lidar data a review of critical issues[J]. Remote Sensing, 2010, 2(3):833-860. doi: 10.3390/rs2030833
[5] ZHOU X M. Filtering algorithm of point cloud data for airborne LiDAR[D]. Zhengzhou: The PLA Information Engineering University, 2011: 1-4(in Chinese).
[6] AXELSSON P. Proeessing of laser scanner data-algorithms and applications[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 1999, 54(2/3):138-147.
[7] ZHANG X H. Theory and method of airborne lidar measurement technology[M]. Wuhan:Wuhan University Press, 2007:96-104(in Chinese).
[8] ZHANG X H. Airborne laser scanning altimetry data filtering and object extraction[D]. Wuhan: Wuhan University, 2002: 3-7(in Chinese).
[9] GEORGE S, GEORGE V. Experimental comparison of filter algorithms for bare-earth extraction from airborne laser scanning point clouds[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2004, 59(1/2):85-101.
[10] MENG X, WANG L, SILVAN-CARDENAS J L. A multi-directional ground filtering algorithm for airborne LiDAR[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2009, 64(1):117-124.
[11] SUSAKI J. Adaptive slope filtering of airborne LiDAR data in urban areas for digital terrain model (DTM) generation[J]. Remote Sensing, 2012, 4(6):1804-1819. doi: 10.3390/rs4061804
[12] ZHANG K, CHEN S C, WHITMAN D. A progressive morphological filter for removing non-ground measurements from airborne LiDAR data[J]. IEEE Transactions on Geoscience & Remote Sensing, 2003, 41(4):872-882.
[13] MONGUS D, LUKAČ N, ŽALIK B. Ground and building extraction from LiDAR data based on differential morphological profiles and locally fitted surfaces[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2014, 93(7):145-156.
[14] MONGUS D, ŽALIK B. Parameter-free ground filtering of LiDAR data for automatic DTM generation[J]. ISPRS Journal of Photogrammetry & Remote Sensing, 2012, 67(1):1-12.
[15] LI Z L, ZHU Q. Digital elevation model[M]. Wuhan:Wuhan University Press, 2005:44-47(in Chinese).
[16] LAI X D. Fundamentals and applications of airborne LiDAR[M]. Beijing:Publishing House of Electronics Industry, 2010:150-201(in Chinese).
[17] ZHANG W M, QI J B, XIE D H. An easy-to-use airborne LiDAR data filtering method based on cloth simulation[J]. Remote Sensing, 2016, 8(6):501. doi: 10.3390/rs8060501
[18] WEIL J. The synthesis of cloth objects[J]. ACM SIGGRAPH Computer Graphics, 1986, 20(4):49-54. doi: 10.1145/15886
[19] PROVOT X. Deformation Constraints in a mass-spring model to describe rigid cloth behaviour[EB/OL].(2005-05-26)[2017-07-17]. http://www.cs.cornell.edu/courses/cs667/2005sp/studentSlides/07budsberg.pdf.
[20] MOSEGAARD J. Mosegaards cloth simulation coding tutorial[EB/OL].(2013-10-18)[2017-07-17]. http://victorfrench.com/cgi-techniques-clothsim.php.