Astroid shaped DCT feature extraction for enhanced face recognition
Rayavarapu Sri Divya, Anwesha Rath, Sakthi Prabha Ramachandran, K. Manikantan · 2012
This paper proposes a novel Discrete Cosine Transform (DCT) spectrum based approach to enhance the performance of a face recognition (FR) system employing a unique astroid shaped feature selection from the DCT spectrum. Individual stages of the FR system are examined and an attempt is made to improve each stage. A Binary Particle Swarm Optimization (BPSO)-based feature selection algorithm is used to search the feature vector space for the optimal feature subset. Experimental results show the promising performance of astroid shaped DCT feature extraction for face recognition on ORL, UMIST, Extended Yale B and Color FERET databases.