Airborne LiDAR Point Cloud Filtering Algorithm Based on Dynamic Threshold

Zhenyang Hui; Tieding Lu; Youjian Hu; Xianyu Yu; Yuanping Xia

doi:10.3788/LOP56.062802

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

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

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

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

[5] 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, 37, 0828004(2017).

[6] 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, 32, 128-132(2012).

[7] 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, 36, 1159-1163(2011).

[8] Yan J F, Deng K Z, Xing Z Q[J]. 3D laser scanning point cloud filtering based on least squares fitting Bulletin of Surveying and Mapping, 2013, 43-46.

[9] 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, 35, 811-815(2015).

[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, 81, 44-59(2013).

[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, 59, 85-101(2004).

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

[13] 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, 52, 122801(2015).

[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, 92, 98-111(2014).

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

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

[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, 80, 133-141(2014).

[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, 56, 1-14(2013).

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