David G.Lowe的SIFT算子 Matlab实现，运行前要把siftWin32文件放在Matlab的win目录下，具体调用请参照README- code for detecting and matching SIFT features David Lowe (lowe@cs.ubc.ca) Version 4, July 6

eyes tracking via webcam-Code based on openCV http://thume.ca/projects/2012/11/04/simple-accurate-eye-center-tracking-in-opencv/ Thanks the authors! It s very helpful!

sift代码，非常详细，容易理解,来源于http://www.cs.ubc.ca/~lowe/keypoints/-the code of sift