一种电网巡检航拍图像中绝缘子定位方法

doi:10.16182/j.issn1004731x.joss.201706023

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (6): 1327-1336.doi: 10.16182/j.issn1004731x.joss.201706023

一种电网巡检航拍图像中绝缘子定位方法

程海燕, 韩璞, 王迪, 翟永杰

华北电力大学河北省发电过程仿真与优化控制工程技术研究中心,保定 071003

收稿日期:2015-12-25 修回日期:2016-04-06 出版日期:2017-06-08 发布日期:2020-06-04
作者简介:程海燕(1978-),女,陕西户县,博士生,讲师,研究方向为模式识别、图像处理;韩璞(1959-),男,河北平泉,本科,教授,博导,研究方向为火电厂智能控制及系统仿真。
基金资助:
国家自然科学基金(61472419),中央高校基本科研业务费专项基金(2014MS140)

Location Method of Insulators in Power Grid Patrol Aerial Images

Cheng Haiyan, Han Pu, Wang Di, Zhai Yongjie

North China Electric Power University, Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation,Baoding 071003, China

Received:2015-12-25 Revised:2016-04-06 Online:2017-06-08 Published:2020-06-04

摘要/Abstract

摘要： 提出了一种电网巡检航拍图像中绝缘子定位方法。该方法利用遗传算法改进的最大类间方差法对航拍绝缘子图像进行阈值分割,然后基于形态学滤波重构;采用SketchUp软件构建绝缘子图像库,即正样本,对该正样本和负样本(背景)分别提取Hu不变矩来训练AdaBoost分类器;利用训练好的分类器对分割后的绝缘子进行分类和粗定位;通过顺序割图法(Order Cut method,OC)对粗定位得到的包含同一个绝缘子的所有矩形的并集的初始最小外接矩形进行裁割,最终获得精细定位的完整绝缘子。实验结果表明,该方法能从航拍图像中有效、精确地定位不同类型、不同长度的完整绝缘子。

关键词: 航拍图像, 绝缘子定位, 阈值分割, 不变矩, 顺序割图法

Abstract: A method to locate the insulators in the power grid patrol aerial images was proposed. OTSU algorithm improved by genetic algorithm was applied to segment insulators from backgrounds. The segmented images were filtered and reconstructed based on morphology algorithm. SketchUp software was used to build insulator samples, namely positive samples. The moment invariants of these samples and negative samples(background) were calculated respectively to train a classifier based on AdaBoost algorithm. By using the trained classifier, segmented insulators were classified and located coarsely. The Order Cut method (OC) was used to cut the original minimum circumscribed rectangle consisting of all rectangles which located the same insulator, and the insulators could be located exactly and completely. The testing results show that this methodology can locate different types and length of insulators from aerial images effectively , accurately and completely.

Key words: aerial images, insulators location, threshold segmentation, moment invariants, Order Cut method

中图分类号:

TN911.73

程海燕, 韩璞, 王迪, 翟永杰. 一种电网巡检航拍图像中绝缘子定位方法[J]. 系统仿真学报, 2017, 29(6): 1327-1336.

Cheng Haiyan, Han Pu, Wang Di, Zhai Yongjie. Location Method of Insulators in Power Grid Patrol Aerial Images[J]. Journal of System Simulation, 2017, 29(6): 1327-1336.

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一种电网巡检航拍图像中绝缘子定位方法

Location Method of Insulators in Power Grid Patrol Aerial Images

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