A Robust Filtering Algorithm of LiDAR Data for DTM Extraction

Abstract:

For DTM extraction of road linear project from LiDAR data, this paper proposes a robust ground filtering algorithm. Firstly, a pyramidal hierarchical structure of ground candidate points is formed. Secondly, in each level, the Thin Plate Spline (TPS) surface interpolation is iteratively used to produces smooth surfaces, and based on the points residuals from the surface the ground candidate points are inspected. The experiments show that this method correctly determines DTM even in those cases of heavy vegetation, and achieve a better result for the road.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 639-642
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.639
• Online since: September 2013
• Authors: Yang Ming, Chu Jiang Chen
• Keywords: Digital Terrain Model, Ground Filtering, LiDAR

References

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

DOI: 10.1016/j.isprsjprs.2004.05.004

[2] Q. Chen, Assessment of terrain elevation derived from satellite laser altimetry over mountainous forest areas using airborne lidar data, ISPRS Journal of Photogrammetry and Remote Sensing, 65 (2010) 111-122.

DOI: 10.1016/j.isprsjprs.2009.09.004

[3] G. Vosselman, Slope based filtering of laser altimetry data, International Archives of Photogrammetry and Remote Sensing, 33 (2000) 935-942.

[4] G. Sithole, Filtering of laser altimetry data using a slope adaptive filter, International Archives of Photogrammetry and Remote Sensing, 34 (2001) 203-210.

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

[6] G. Sohn, I. Dowman, Terrain surface reconstruction by the use of tetrahedron model with MDL criterion, International Archives of Photogrammetry and Remote Sensing, 34 (2002) 336-344.

[7] K. Kraus, N. Pfeifer, Determination of terrain models in wooded areas with airborne laser scanner data, ISPRS Journal of Photogrammetry and Remote Sensing, 53 (1998) 193-203.

DOI: 10.1016/s0924-2716(98)00009-4

[8] N. Pfeifer, T. Reiter, C. Bries, W. Rieger, Interpolation of high quality ground models from laser scanner data in forested areas, International Archives of Photogrammetry and Remote Sensing, 32 (1999) 31-36.

[8] A. Kobler, N. Pfeifer, P. Ogrinc, et al., Repetive interpolation: a robust algorithm for DTM generation from aerial laser scanner data in forested terrain, Remote Sensing of Environment, 108 (2007) 9-23.

DOI: 10.1016/j.rse.2006.10.013

[10] A. Zandifar, S. Lim, R. Duraiswami, N. Gumerov, L. Davis, Multi-level fast multipole method for thin plate spline evaluation, Proceedings of International Conference on Image Preocessing, 3 (2004) 1683-1686.

DOI: 10.1109/icip.2004.1421395