在车辆捕捉的基础上，通过摄像机的标定，建立图象坐标系与现实世界二维平面坐标系的转换关系，从而获得车辆的运动轨迹。-In the vehicle based on the capture by the camera calibration, the establishment of the image coordinate system and the real world two-dimensional coordinate system conversion, in order to obta