Filtering of Airborne LiDAR Data for Cityscapes Based on Segmentation
CHENG Xiao-qian1, FAN Liang-xin1, ZHAO Hong-qiang2
1. School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454003, China; 2. Zhengzhou Urban Planning Design and Survey Research Institute, Zhengzhou 450052, China
Abstract：For the purpose of obtaining high precision DEM, this paper proposes a filtering algorithm of LiDAR data based on segmentation. Firstly, the data are divided into several segments and reliable seeds are selected according to edge detection, and then the ground is obtained by a certain growing rule. In order to test the filtering algorithms, the authors made experiments on several urban areas with different characteristics, and then analyzed the results qualitatively and quantitatively. The results show that the filtering method can effectively extract ground points from point cloud with high stability.
成晓倩, 樊良新, 赵红强. 基于图像分割技术的城区机载LiDAR数据滤波方法[J]. 国土资源遥感, 2012, 24(3): 29-32.
CHENG Xiao-qian, FAN Liang-xin, ZHAO Hong-qiang. Filtering of Airborne LiDAR Data for Cityscapes Based on Segmentation. REMOTE SENSING FOR LAND & RESOURCES, 2012, 24(3): 29-32.
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2012, Vol. 24 
