基于LSD与统计分析的航拍图像电力线提取方法  

Segmenting power lines on the aerial photos based on line segment detector and statistical analysis

作　　者：林火煅 陈杰 薛骅淳 徐畅 马云鹏 LIN Huoduan;CHEN Jie;XUE Huachun;XU Chang;MA Yunpeng(State Grid Fujian Provincial Electric Power Supply Company, Zhangzhou Branch, Zhangzhou 363000, China;College of Internet of Things Engineering, Hohai University, Changzhou 213022, China)

机构地区：[1]国网福建省电力有限公司漳州公司,福建漳州363000 [2]河海大学物联网工程学院,江苏常州213022

出　　处：《应用科技》2019年第2期30-34,共5页Applied Science and Technology

基　　金：国家自然科学基金项目(61703139);江苏省重点研发计划项目(BE2018066)

摘　　要：针对现有电力线提取算法在复杂场景环境下准确率低、稳定性差的问题,提出了一种基于直线段检测(LSD)与统计分析的航拍图像电力线提取方法。首先利用LSD算法提取图像线段基元,统计分析确定电力线主方向,剔除非主方向的干扰线段,构建电力线线段基元池;然后根据侧向距离对线段基元进行分组与二次筛选,确定电力线基元组;最后通过拟合线段基元实现电力线的提取。实验结果表明,该算法可以有效抑制航拍图像背景的干扰,实现直线型电力线检测与悬链型电力线的检测,具有准确率高、稳定性好等优点。In order to solve the problems of low accuracy and poor stability existing in power line extraction algorithms under complex scenes and different forms of power line environment,a new power line extraction method based on line segment detector(LSD)and statistical analysis is proposed in this paper.First,LSD algorithm was used to extract image line primitives;then the main direction of power line was determined according to statistical analysis,and the interference lines were removed from the main direction and by this way,a pool of power line primitives was constructed;second,the power line primitives were grouped and filtered by measuring the lateral distance to determine the power line primitives;finally,the extraction of power lines was determined by simulating each group of power line primitives.The experimental results show that the algorithm can effectively suppress the interference of aerial image background,and can detect both straight line and catenary power lines at the same time,having the advantages of high accuracy and good stability.

关 键 词：电力线提取 悬链线 直线段检测 统计分析 线段基元 主方向 最小二乘拟合 航拍图像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]