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Advances in Artificial Neural Systems
Volume 2011 (2011), Article ID 673016, 16 pages
http://dx.doi.org/10.1155/2011/673016
Research Article

Applying Artificial Neural Networks for Face Recognition

Department of Computer Science, Ho Chi Minh University of Science, Ho Chi Minh City 70000, Vietnam

Received 25 January 2011; Revised 16 June 2011; Accepted 19 July 2011

Academic Editor: Naoyuki Kubota

Copyright © 2011 Thai Hoang Le. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper introduces some novel models for all steps of a face recognition system. In the step of face detection, we propose a hybrid model combining AdaBoost and Artificial Neural Network (ABANN) to solve the process efficiently. In the next step, labeled faces detected by ABANN will be aligned by Active Shape Model and Multi Layer Perceptron. In this alignment step, we propose a new 2D local texture model based on Multi Layer Perceptron. The classifier of the model significantly improves the accuracy and the robustness of local searching on faces with expression variation and ambiguous contours. In the feature extraction step, we describe a methodology for improving the efficiency by the association of two methods: geometric feature based method and Independent Component Analysis method. In the face matching step, we apply a model combining many Neural Networks for matching geometric features of human face. The model links many Neural Networks together, so we call it Multi Artificial Neural Network. MIT + CMU database is used for evaluating our proposed methods for face detection and alignment. Finally, the experimental results of all steps on CallTech database show the feasibility of our proposed model.