智能视频分析，harris角点的检测。 从图像局部的小窗口观察图像特征 ，角点的定义是窗口向任意方向的移动都导致图像灰度的明显变化。 -Intelligent Video Analysis harris corner detection. Observed image feature from the local image of the small window, the corner points is defined as the movement of the window to