基于opencv的SIFT图像特征跟踪程序，应用于视频序列中跟踪图像特征-Opencv-based SIFT feature tracking program, used to track image features in video sequences

基于特征的3D对准算法，用于进行Camera tracking,是非常高效的估计相机位置的算法。-Feature-based 3D algorithm focus on the efficient camera tracking, this is the demo of the slam