利用参数关联性的输电线检测方法

Power transmission line detection utilizing the relationship between the parameters

在无人机巡检输电线的航拍图像中,输电线通常受到如道路和建筑等背景噪声的干扰,为了提高输电线检测的鲁棒性,提出了一种输电线检测方法。首先进行直线增强;然后通过Hough变换将检测到的边缘进行直线检测并将直线转换到参数空间;再次对检测到的直线参数进行Hough变换并根据输电线簇参数关系提取出输电线图形信息。实验结果表明,利用输电线簇参数关联性的输电线检测方法可以有效地将输电线从具有干扰直线的背景中提取出来,从而提高航拍图像输电线检测的鲁棒性。

In the aerial images for the routing inspection of power transmission lines by UAVs,the power transmission lines were often mixed up with the lines in the background such as roads and buildings. To improve the robustness of power transmission line detection,the relationship between the parameters of lines belonging to a cluster of power transmission lines and proposed a method based on the relationship is derived. Then three steps follow. Firstly the lines image information is enhanced. Secondly by using Hough transform the detected edges information is converted into the parameter space. At last Hough transform is conducted again in the parameter space and the power transmission lines information is extracted. Experiment results showed that the method could extract the power transmission lines information from images with interference lines and have good robustness.