surf implementation for yandex conkurs of panorama image matching

图像拼接。首先采用surf算法提取特征点，再用双向匹配剔除误匹配，最后采用渐进渐出实现全景图-Image stitching. First feature points are extracted using surf algorithm, and then removed two-way matching mismatch, finally adopted gradually progressive realization panorama

基礎SURF應用從最簡單的入門找特徵點、到稍微進階的影像比對以及照片合成全景圖的應用-SURF application of basic applications, from the simplest to find entry feature points to a slightly advanced image comparison and synthesis panorama photo