基于数字图像处理的单条输电线路曲线提取

摘要

In the real-time monitoring of transmission lines ’ work, using digital image processing to extract a single transmission line ’ s curve between two towers adjacent to each other is to calculate important parameters con-veniently and get more useful information .Firstly, the edge extraction image was obtained through a series of trans-mission line image preprocessing .Secondly , improvements were maken on the basis of a typical edge tracking algo-rithm (commonly known as “worms crawl Law”) and with the improved method edge tracking .Finally, human-computer interaction and edge tracking algorithm were combined and maken feature selection correct repeatedly for transmission lines , then the complex image background can be removed and get a single transmission line curve . The experiments prove that this method can effectively extract the single transmission line curve .%对输电线路实时监测的工作中，为方便计算重要参数、获取有用信息，采用数字图像处理的方法提取出相邻两个塔杆之间的单条输电线路曲线。首先，输电线图像采取一系列预处理，得到输电线路的边缘提取图像。然后，在一般的边缘跟踪算法（俗称“小虫爬法”）的基础上改进，并进行边缘跟踪。最后，将人机交互与边缘跟踪算法相结合，对输电线路进行特征点选取及多次修正，即可去除图像中的复杂背景，得到单条输电线路的曲线。经实验验证，此种方法能有效提取出单条输电线路曲线。