这是伟大的sift提出者david.lowe编写三篇sift图像匹配相关的扛鼎原著。软件开发人员在抱着“拿来主义”的同时也应该深入研究代码原理和理论，要不怎么创新？怎么超越？如果你是图像匹配的研究者，在下载完sift代码同时，希望也能收藏并抽时间通读这三篇著作，即使对自身研究理论水平提高，也是对原著作者贡献的肯定。-This is great sift Raised david.lowe, write three sift related to image matching carry the tripod original. Software developers should also have the " ism"　in-depth study code principles and theories, or how innovation? How to go beyond? If your image match researchers downloaded sift code at the same time, I hope to their collections and take the time to read through these three works, even for their own research and theoretical levels improve, certainly also the author of the original contribution.