一种利用边缘方向直方图检测绝缘子的方法

在图像/视频中自动检测和定位绝缘子是绝缘子故障诊断重要前提,但是目前还没有高效的、成本较低的检测绝缘子方法。本文提出了一种利用边缘方向直方图定位绝缘子的方法。首先,分别计算图像子块和模板的边缘方向矢量,并通过矢量变换得到变形模板的边缘方向矢量;之后,针对分块的图像,通过模板与之边缘方向矢量匹配,得到绝缘子的候选区域;而后,对候选区域进行连续性判断,从而实现绝缘子的准确定位。实验表明该算法能够较好地在图像/视频中检测和定位绝缘子。

An Insulator Detection Method Using Edge Orientation Histogram

Auto-detection and location insulator is an important prerequisite for fault diagnoses of insulator in the image or video, but there is no an efficient, lower-cost method now. In this paper, we propose a method that can detect insulators using edge orientation histogram. First of all, edge orientation vectors of the image sub-block and template are calculated respectively, and we can obtain edge orientation vectors of deformed templates by vector transformation. Then candidate regions of insulators are obta...