Face Recognition Feature Comparison Based SVD and FFT
Lina Zhao, Wanbao Hu, Lihong Cui · Journal of Signal and Information Processing · 2012
SVD and FFT are both the efficient tools for image analysis and face recognition. In this paper, we first study the role of SVD and FFT in both filed. Then the decomposition information from SVD and FFT are compared. Next, a new viewpoint that the singular value matrix contains the illumination information of the image is proposed and testified by the experiments based on the ORL face database finally.