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Study on Train Derailment Test Based on Computer Vision Technology

LU Yi;LIN Jianhui;ZHANG Bing;DU Gaofeng;Traction Power State Key Laboratory,Southwest Jiaotong University;School of Mechanical Engineering,Southwest Jiaotong University;  
A new method is Proposed to measure the train derailment motion,which is based on computer vision technology.The method uses the high-speed cameras to record the movement of derailed protector and derailed wheel,and completes the measurement of the train movement trajectory and the longitudinal motion parameters by using the camera calibration technology,which establishes correspondence between the image plane and the three-dimensional space.This measurement method solves the problem of test system installation difficulty in destructive test,breaking the traditional testing methods.It needs less equipment and has a strong adaptability in test site.
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