Facial Expression Recognition by Holistic and Geometrically IntegratedSubspace
G. P. Hegde, M. Seetha, Nagartna P Hegde · International Journal of Image Graphics and Signal Processing · 2018
This paper demonstrates mainly on feature extraction by analytic and holistic methods and proposes a novel approach for feature level fusion for efficient expression recognition.Gabor filter magnitude feature vector is fused with upper part geometrical features and phase feature vector is fused with lower part geometrical features respectively.Both these high dimensional feature dataset has been projected into low dimensional subspace for de-correlating the feature data redundancy by preserving local and global discriminative features of various expression classes of JAFFE, YALE and FD databases.The effectiveness of subspace of fused dataset has been measured with different dimensional parameters of Gabor filter.The experimental results reveal that performance of the subspace approaches for high dimensional proposed feature level fused dataset compared with state of art approaches.