A face recognition method using linear discriminant analysis based on Ridgelet transform
Meiqing Wang · Fuzhou daxue xuebao. Ziran kexue ban · 2008
A new approach of linear discriminant analysis based on Ridgelet transform is introduced to overcome the small sample size problem in traditional linear discriminant analysis method.First,radon transform was used to project the face image to projection matrix;then,the wavelet transform is applied to get the Ridgelet coefficient matrix;and finally,linear discriminant analysis is employed for the feature extraction.The comparative experiments on ORL face database verify the effectiveness of the proposed method.