The invention relates to the technical field of track abrasion detection, in particular to a steel rail abrasion measuring method and device.The method comprises the steps that binocular calibration is conducted through a checkerboard method, and internal and external parameters of a left camera and a right camera are obtained; obtaining a light plane equation of the light plane in a left and right camera coordinate system through light plane calibration; image processing: controlling a left camera and a right camera through a computer to acquire a plurality of groups of pictures including laser line contours containing steel rail information, and performing distortion correction processing on the acquired original pictures; acquiring point cloud data and registering the point cloud data; and calculating the steel rail abrasion value. The method has the advantages that the point clouds of the left camera and the right camera are registered through the ICP algorithm, the point clouds can be accurately aligned, dislocation caused by different positions and angles of the cameras is eliminated, the fused point clouds contain more detail information, the integrity and accuracy of a three-dimensional model are improved, and the accuracy of the three-dimensional model is improved. And high-precision matching between the simplified point cloud contour and the standard contour is ensured.
本发明涉及轨道磨耗检测技术领域,特别是一种钢轨磨耗测量方法及装置,其包括通过棋盘格方法进行双目标定,获取左右相机的内外参数;通过光平面标定获取光平面在左右相机坐标系下的光平面方程;图像处理,通过计算机控制左右相机采集包括含钢轨信息的激光线轮廓的多组图片,并对获取的原始图片进行畸变矫正处理;获取点云数据并对点云数据进行配准;计算钢轨磨耗值。本发明的有益效果为通过ICP算法对左右相机的点云进行配准,可以使点云被精确对齐,消除了由于相机位置和角度不同导致的错位,且融合后的点云包含更多的细节信息,提高三维模型的完整性和准确性,确保简化点云轮廓与标准轮廓之间的高精度匹配。
Steel rail abrasion measuring method and device
一种钢轨磨耗测量方法及装置
2024-12-06
Patent
Electronic Resource
Chinese
IPC: | G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen |
Rail abrasion measuring method, device, medium and equipment
European Patent Office | 2024
|