中文说明：首先进行角点检测，利用sift进行特征提取，找到关键点进行匹配，最后利用SVD算法，利用RANSAC进行提纯，以实现图像的拼接。
English Description：
Firstly, corner detection is carried out, sift is used to extract features, and key points are found for matching. Finally, SVD algorithm and RANSAC are used for purification to realize image mosaic.