[OPTICAL REVIEW Vol. 10, No. 4 (2003) 255-261]
© 2003 The Optical Society of Japan

Security Applications of Optical Face Recognition System: Access Control in E-Learning

Rieko INABA, Eriko WATANABE and Kashiko KODATE

Department of Mathematical and Physical Sciences, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-ku, Tokyo 112-8681, Japan

(Received March 10, 2003; Accepted June 3, 2003)

The educational system has gradually shifted from a face-to-face to an e-learning system, which has become prevalent in advanced countries with the advance of information technology, and connection of global networks. Accordingly, a growing demand is emerging for more reliable individual certification with technical precision in order to measure and record learning achievements and credentials of participants. The present system has a limit in terms of registration capacity, therefore, its accuracy has often been questioned. Against this background, an individual certification system is proposed particularly for access control in e-learning. Under our proposed system, a compact optical correlator for facial recognition is employed. This correlator was previously tested for of biometrics authentication accuracy and proved highly reliable, having recorded remarkably low error rates (below 1%). The recorded error rate is sufficiently robust that the system itself can be regarded as a valid and practical viable attestation system.

Key words: Compact optical correlator, access control for e-learning, multi-level zone plate array, facial recognition