在道路交通事故中，车辆超速行驶易引发交通事故。交通民警依据掌握的车辆发生事故时的速度既可以确定 交通事故的性质、分析事故原因，也是认定交通事故责任的关键因素。本文通过对视频资料中连续帧的序列图像的分析处理 来实现车辆速度的测定，在实际操作中可以很好地控制测量精度，将测量误差控制在较小的范围之内。

Vehicle speeding always leads to traffic accidents. According to the speed of the vehicle in accidents，polices can determine the nature of the traffic accident，analyzes the reason，and identifies the accident liability. This article measures the vehicle velocity by analyzing the continuous sequences of images in the video，which has good precision with the measurement error in a smaller scale.