In this paper, a novel scale- and rotation-invariant interest point detector and descr iptor, coined SURF (Speeded Up Robust Features) is presented. It approximates or even outperforms previously proposed schemes with respect to repeatability, di

整合了模式识别领域中几种经典的关于区域识别的文章，对于研究模式识别的同学，会有很大帮助-Integrated field of pattern recognition several classic articles on regional recognition, pattern recognition for research students, there will be a great help

仿射不变Harris, Laplacian, det(Hessian) and Ridge 特征点检测 参考文献：An affine invariant interest point detector , K.Mikolajczyk and C.Schmid, ECCV 02, pp.I:128-142.-Matlab code for detecting Affine spatial interest points. Includes Harris, Laplacian, det(Hess