【摘要】 针对南疆既有铁路接触网定位悬挂风致偏移的视觉检测问题,提出了一种基于动态模板灰度匹配的定位悬挂点运动识别算法。以目标模板像素点与遍历区域区间像素点之间的灰度方均根匹配的差异最小的原则确定坐标点,本文采用时间序列的动态目标模板进行迭代更新,以确保各帧序列图像的目标识别不受环境亮度和对比度的影响。结果表明,提出的动态模板匹配算法可实现强风复杂成像条件下的接触网风致运动跟踪识别。更多还原

【Abstract】 A dynamic image-grey template matching method was proposed to identify the catenary suspension point movements for wind-induced vibration issue of railway catenary system in Nanjiang wind area.The coordinate point is determined based on the principle that the minimum difference between the target template pixel and the gray square of the interval pixel points between traversing regions is the smallest.The target template was updated by the detected target area after each matching,to make the target recognition algorithm immune to both variable environment brightness and contrast.Validation results indicate that the dynamic template matching method can realize wind-induced catenary motion recognition in complex imaging environment.更多还原