Two directional two dimensional direct linear discriminant analysis for facial expression recognition
Qiumei Zheng · Zhongguo Shiyou Daxue xuebao. Ziran kexue ban · 2010
A novel algorithm for facial expression recognition of two directional two dimensional direct linear discriminant analysis ( ( 2D) 2DLDA) algorithm was proposed. DLDA algorithm works in the row direction and the column direction of image to directly extract the image scatter matrix from 2D image. This method reduces the dimensions of feature vector,and the coefficients and memory for image representation. The experimental results on JAFFE database show that the proposed algorithm can achieve high recognition rate.