中国电机工程学报2011，Vol.31Issue(16)：115-120,6.
基于航拍序列图像的输电线弧垂测量方法
Method of Transmission Line Sag Measurement Based on Aerial Image Sequence
仝卫国 1李宝树 1苑津莎 1赵书涛1
作者信息
- 1. 华北电力大学,河北省,保定市,071003
- 折叠
摘要
Abstract
Sag is one of the most important parameters of power transmission line operation; and it will directly affect the security and the reliability of the electric network. A novel method of sag measurement based on aerial image sequence acquired from the helicopter used for the power line inspection was presented in this paper. Firstly, the space-dampers on the transmission line were used as feature points; and the normalized correlation method of image matching combined with the pyramidal layered searching method based on wavelet translation was used to measure the coordinates of the feature points in the sequence images. Secondly, with the stereo vision technology, the three dimensional coordinates of the feature points in the coordinated system were measured. Finally, via the method of least square curve fitting, the actual sag of the transmission line was calculated. The experimental results prove the validity and the feasibility of the proposed method both theoretically and practically; and results also demonstrated that this method can promote the efficiency of sag measurement and can be particularly suitable for complex geographical conditions.关键词
弧垂/图像序列/图像匹配/立体视觉/曲线拟合分类
信息技术与安全科学引用本文复制引用
仝卫国,李宝树,苑津莎,赵书涛..基于航拍序列图像的输电线弧垂测量方法[J].中国电机工程学报,2011,31(16):115-120,6.
