此方法应用光流法对一系列图片进行计算，最后得出结果，并能在图片上支出灌流的运动方向-This method applies a series of image optical flow calculation, the final outcome, and can spend the image direction of movement of perfusion

Optical flow code calculate good features and then track them

LK 和HS光流代码，初学者可用，带有误差分析-LK optical flow and the HS code is available for beginners, error analysis with