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 
