Automatic Power Lines Extraction Method from Airborne LiDAR Point Cloud

CHEN Chi; MAI Xiaoming; SONG Shuang; PENG Xiangyang; XU Wenxue; WANG Ke

doi:10.13203/j.whugis20130573

Volume 40 Issue 12

Dec. 2015

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Geomatics and Information Science of Wuhan University > 2015 > 40(12): 1600-1605. > DOI: 10.13203/j.whugis20130573

CHEN Chi, MAI Xiaoming, SONG Shuang, PENG Xiangyang, XU Wenxue, WANG Ke. Automatic Power Lines Extraction Method from Airborne LiDAR Point Cloud[J]. Geomatics and Information Science of Wuhan University, 2015, 40(12): 1600-1605. DOI: 10.13203/j.whugis20130573

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Automatic Power Lines Extraction Method from Airborne LiDAR Point Cloud

1.
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
2.
Engineering Research Center for Spatio-temporal Data Smart Acquisition and Application of Ministry of Education of China, Wuhan University, Wuhan 430079, China;
3.
Electric Power Research Institute, Guangdong Power Grid Corporation, Guangzhou 510080, China;
4.
The First Institute of Oceanography, Qingdao 266061, China

Funds: The National Basic Research Program of China(973 Program), No.2012CB725301; the National Natural Science Foundation of China, No.41371431;the Key Science and Technology Project of China Southern Power Grid Co. Ltd, No.K-GD2013-030.

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Received Date: May 06, 2015
Published Date: December 04, 2015

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Abstract

This paper present a power lines automatic extraction method from airborne LiDAR point cloud. Firstly, ground points are removed by automatic filtering method based on fluctuant feature of terrain. Vegetation points, building points and part pylon points are also removed by dimensionality feature and direction feature. Secondly, 2D Hough transform and least square fitting are used to fit center line equation of power lines. And then, the laser point of each power lines can be obtained by center line equation. In this step, power lines projection overlap in the horizontal plane are considered as well. Finally, block centroid calculation method is used to calculate 3D nodes of each power lines. These nodes are used to output the power lines vector. The experimental result shows that the proposed method can extract complete power lines from airborne LiDAR point cloud. This method has some practical meaning for power line inspection.
- airborne LiDAR point cloud,
- power lines extraction,
- filtering,
- Hough transform,
- centroid calculation

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