首先限定道路三角形，然后检测前车和跟踪，计算前面车辆的数目、相对距离和速度-First of all, limited road triangle, and then test the vehicles and track, calculate the number of the vehicle in front, the relative distance and speed

车牌号，工件号的字符的分割，代码简单，运行速度快，分割效果很好-License plate number, the number of characters segmentation of the workpiece, the code is simple, fast running speed, the segmentation results is very good