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Proceedings Paper

LIDAR data filtering and classification with TIN and assistant plane
Author(s): Qihong Zeng; Jianhua Mao; Xianhua Li; Xuefeng Liu
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Paper Abstract

LIDAR is a new promising technique in obtaining instantly 3D point cloud data representing the earth surface information. In order to extract valuable earth surface feature information for further application, 3D sub-randomly spatial distributed LIDAR point cloud should be filtered and classified firstly. In this article, a new LIDAR data filtering and classification algorithm is presented. First, the points' neighboring relation and height-jump situation in TIN (triangulated irregular network) model for 3D LIDAR point cloud are analyzed. After that, the filtering algorithm based on TIN neighboring relation and height-jump is presented. Third, an assistant plane is designed in TIN neighborhood filtering algorithm in order to yield more effective filtering result. Then, the LIDAR points are classified into bare ground points, building points and vegetation points using the above filtering algorithms. The experiment is performed using the airborne LIDAR data, and the result shows that this method has better effect on filtering and classification of LIDAR point cloud data.

Paper Details

Date Published: 8 August 2007
PDF: 8 pages
Proc. SPIE 6752, Geoinformatics 2007: Remotely Sensed Data and Information, 675206 (8 August 2007); doi: 10.1117/12.760108
Show Author Affiliations
Qihong Zeng, Shanghai Univ. (China)
Jianhua Mao, Shanghai Univ. (China)
Xianhua Li, Shanghai Univ. (China)
Xuefeng Liu, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 6752:
Geoinformatics 2007: Remotely Sensed Data and Information

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