中文说明：我的项目是来自视频监视行人的检测。在这里我使用光流的方法。光学流动是图像中的对象的表观速度的分布。通过估计光流视频帧之间，你可以测量中视频对象的速度。一般情况下，移动相机更接近的对象将显示更明显的运动比远处的物体，都是以相同的速度移动。
English Description：
My project is the detection of pedestrians from a video surveillance. Here i use the method of optical flow.Optical flow is the distribution of the apparent velocities of objects in an image. By estimating optical flow between video frames, you can measure the velocities of objects in the video. In general, moving objects that are closer to the camera will display more apparent motion than distant objects that are moving at the same speed.