光流场显示视频图像特征点，标出特征点其位移矢量-Optical flow field to display video image features，The displacement vector of feature points marked

code for optical flow estimation using OpenCV from realtime video from a webcam

lk demo - opencv demo for image tracking-lk demo- opencv demo for image tracking

Sparse OpticalFlow Demo程序，可以从一段视屏或者摄像头中中建立光流。需要安装OPENCV 附属library。然后安装到任何C++编译器下，即可使用-OpenCV optical flow source code,Create optical flow from video or web cam. Need to install openCVｌｉｂａｒｙ　ｉｎｔｏ　ａｎｙ　Ｃ＋＋　ｃｏｍｐｉｌｅｒ．