STEREO-BASED ELLIPTICAL HEAD TRACKING-A novel algorithm for head-tracking based on stereo is presented in this paper. Employing stereo vision makes the tracker robust to many factors such as clutter, color and lighting variations, that affect c

在线boost算法，来自文章On-line Boosting and Vision-boost tracker from paper:: On-line Boosting and Vision

Lucas-Kanade 跟踪算法，此算法实现了经典Lk跟踪，详细算法参见文章 An Iterative Image Registration Technique with an Application to Stereo Vision (IJCAI), B.D. Lucas and T. Kanade, 7th International Joint Conference on Artificial Intelligence (IJCAI), April, 1981, pp. 674-67