中文说明：Harris角点检测算法：利用图像角点的梯度信息，作为角点检测的判断基础，对图像进行多个方向上的梯度特征提取，最终得到有效的检测角点
English Description：
Harris corner detection algorithm: using the gradient information of image corners as the judgment basis of corner detection, the gradient feature extraction in multiple directions of the image is carried out, and finally the effective corner detection is obtained