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Hybrid Approach to Face Recognition System using Principle component and Independent component with score based fusion process

Hybrid approach has a special status among Face Recognition Systems as they combine different recognition approaches in an either serial or parallel to overcome the shortcomings of individual methods. This paper explores the area of Hybrid Face Recognition using score based strategy as a combiner/fusion process. In proposed approach, the recognition system operates in two modes: training and classification. Training mode involves normalization of the face images (training set), extracting appropriate features using Principle Component Analysis (PCA) and Independent Component Analysis (ICA). The extracted features are then trained in parallel using Back-propagation neural networks (BPNNs) to partition the feature space in to different face classes. In classification mode, the trained PCA BPNN and ICA BPNN are fed with new face image(s). The score based strategy which works as a combiner is applied to the results of both PCA BPNN and ICA BPNN to classify given new face image(s) according to face classes obtained during the training mode. The proposed approach has been tested on ORL and other face databases; the experimented results show that the proposed system has higher accuracy than face recognition systems using single feature extractor.

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