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Face recognition by fast independent component analysis and genetic algorithm

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3 Author(s)
Yi-qiong Xu ; Dept. of Inf. Sci., Inf. Eng. Univ., Zhengzhou, China ; Bi-cheng Li ; Bo Wang

In this paper, ICA is presented as an efficient feature extraction algorithm used in automatic face recognition task. In a task such as face recognition, important information may be contained in the high-order relationship among pixels. ICA is sensitive to high-order statistic in the data and finds not-necessarily orthogonal bases, so it may better identify and reconstruct high-dimensional face image data. ICA algorithms are time-consuming and sometimes converge difficultly. So a modified FastICA algorithm is developed in this paper, which only need to computer Jacobian matrix once time in one iteration and achieves the correspondent effect of Fast-ICA. After obtaining all independent components, a genetic algorithm is introduced to select optimal independent components (ICs). In this paper, ICA is compared with principle component analysis (PCA) based feature extraction method. The experiment results show that modified FastICA algorithm fast convergence speed and genetic algorithm optimize recognition performance. ICA based features extraction method is robust to variations and promising for face recognition.

Published in:

Computer and Information Technology, 2004. CIT '04. The Fourth International Conference on

Date of Conference:

14-16 Sept. 2004