A Robust Affine Invariant Local Image Features Extraction Method
ZHOU Tao1,2,ZHANG Mao-Jun1,XIONG Zhi-Hui1,XU Wei1
1.College of Information Systems and Management,National University of Defense Technology,Changsha 410073 2.Department of Information Engineering,Engineering University of CAPF,Xi′an 710086
Abstract A robust affine invariant local image features extraction method is proposed. Firstly,the image is transformed with M band wavelet. The feature points of the image are detected according to the energy of the M band wavelet transform coefficients. Then,every detected feature point is set to be a center. According to the local image information around the center,affine invariant feature is constructed with a moment structure. The experiments prove the invariant efficiency of the proposed method in image rotation,shift,scaling and viewpoint change etc.
2013, Vol. 26 
