基于线搜索算法的输电线路覆冰厚度检测  

Detection of Ice Thickness Covered over Transmission Line Based on Line Search Algorithm

作　　者：周灿梅[1] 陆佳政[2] 向永嘉[1] 黎福海[1] 罗晶[2] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082 [2]湖南省电力公司试验研究院科技中心,湖南长沙410007

出　　处：《仪表技术与传感器》2010年第8期44-46,84,共4页Instrument Technique and Sensor

基　　金：国家电网公司防冰减灾科研项目(SGK[070])

摘　　要：针对复杂背景下输电线路覆冰厚度的检测,提出一种线搜索算法。利用复杂背景下沿覆冰电缆方向,电缆图像纹理具有平滑性或周期性的特征,首先遍历符合条件的直线,得到直线簇,并统计直线簇斜率,再根据斜率直方图,通过电缆图像特征匹配,完成覆冰电缆的边缘提取,最终计算出电缆覆冰厚度值。通过不同背景下的覆冰电缆的覆冰厚度检测实验测试,验证了该算法的有效性。A novel line search algorithm was proposed for detecting thickness of ice covered over the transmission line under complex background.Because images have the characteristics of smoothness or periodicity against the direction of iced cable.It traversaled the lines that satisfy condition to get line cluster.And then it counted the gradient of line cluster to complete edge detection of iced cable based on gradient histogram and images characteristics match.Finally,it calculated the thickness of the covered ice.The algorithm was proved efficient by many tests under different background.

关 键 词：覆冰厚度检测 线搜索 特征匹配 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]