用于特征跟踪的算法源码，里面有不同的跟踪算法-For feature tracking algorithm source code, which has a different tracking algorithm

《Real-Time Compressive Tracking》这个paper的感知跟踪算法的代码。利用Harr特征，对大部分视频有较好的跟踪效果-Code of the paper “Real-Time Compressive Tracking”。Use the Harr feature to get the good performance.