The research on binocular ranging technology for transmission lines based on two - dimensional line matching

Abstract

using binocular distance measurement technology to obtain the distance between the dangerous object and the transmission line, which provides powerful data information for the judgment of the risk degree of external damage and the assessment of the probability of the line suffering from external damage, so as to ensure the safety of the line. In order to solve the problem of large epipolar error caused by serious image distortion under wide-angle lens, local two-dimensional line matching scanning technology, which based on the object position information obtained by target detection, reduced the influence of epipolar error and increase the robustness of matching. At the same time, the dense calculation of global image distance is degraded to the local dense calculation of target, which improves the real-time performance of binocular ranging algorithm in high-resolution monitoring image. Finally, the image segmentation technology is used to improve the mismatching problem at the depth discontinuity to further improve the accuracy of binocular ranging.