快速角点检测算法，速度比SIFT,SURF等特征快10倍以上，角点检测的重复精度较高，广泛应用于增强现实等对速度要求比较高的场合-Fast corner detection algorithm, faster than the SIFT, SURF and other features more than 10 times faster, corner detection of a high repeat accuracy, widely used in augmented reality, e