本文档是号称尺度不变特征父亲的David Lowe于1999年发表的经典论文的翻译，参考了很多版本后自己整合的，希望对大家有帮助！-This document is a translation of a classic paper published in 1999 writen by a man known as the father of the scale-invariant feature David Lowe, refered to a lot of versions, hope it

sift尺度不变特征，特征提取相关较好论文-The sift scale invariant features, feature extraction better paper

Hu不变矩的特征提取与匹配，可以实现生物是必定，并且农工eowngle-Hu invariant moments feature extraction and matchinghttp://www.pudn.com/upload.asp#