利用计算机视觉检测汽车车轮定位参数

Study on testing automobile alignment based on computer vision

应用计算机视觉理论建立了图像坐标系和摄像坐标系;根据汽车车轮在运动中的2幅头影图像空间点坐标变换原理推导了图像上的对应点的运动方程。在此基础上建立了计算车轮定位参数的数学模型;基于模型建立了车轮定位参数检测实验系统,并验证了该数学模型的正确性。

Using computer vision theory,image coordinate system and camera coordinate system are set up.On the basis of two projected pictures from automobile wheel at the volley and theory of coordinate transformation for points in space,its equation of motion for corresponding point image is derivated,and the mathematical model based on this theory to solve the automobile wheel motion parameter is set up .On the basis of the method,the paper sets up experiment system of alignment test and proves its practiability.