High-accuracy and robust face recognition system based on optical parallel correlator using a temporal image sequence

Eriko Watanabe; Mami Ishikawa; Maiko Ohta; Kashiko Kodate

doi:10.1117/12.616551

16 September 2005 High-accuracy and robust face recognition system based on optical parallel correlator using a temporal image sequence

Eriko Watanabe, Mami Ishikawa, Maiko Ohta, Kashiko Kodate

Author Affiliations +

Proceedings Volume 5908, Optical Information Systems III; 590815 (2005) https://doi.org/10.1117/12.616551
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Face recognition is used in a wide range of security systems, such as monitoring credit card use, searching for individuals with street cameras via Internet and maintaining immigration control. There are still many technical subjects under study. For instance, the number of images that can be stored is limited under the current system, and the rate of recognition must be improved to account for photo shots taken at different angles under various conditions. We implemented a fully automatic Fast Face Recognition Optical Correlator (FARCO) system by using a 1000 frame/s optical parallel correlator designed and assembled by us. Operational speed for the 1: N (i.e. matching a pair of images among N, where N refers to the number of images in the database) identification experiment (4000 face images) amounts to less than 1.5 seconds, including the pre/post processing. From trial 1: N identification experiments using FARCO, we acquired low error rates of 2.6% False Reject Rate and 1.3% False Accept Rate. By making the most of the high-speed data-processing capability of this system, much more robustness can be achieved for various recognition conditions when large-category data are registered for a single person. We propose a face recognition algorithm for the FARCO while employing a temporal image sequence of moving images. Applying this algorithm to a natural posture, a two times higher recognition rate scored compared with our conventional system. The system has high potential for future use in a variety of purposes such as search for criminal suspects by use of street and airport video cameras, registration of babies at hospitals or handling of an immeasurable number of images in a database.

Citation Download Citation

Eriko Watanabe, Mami Ishikawa, Maiko Ohta, and Kashiko Kodate "High-accuracy and robust face recognition system based on optical parallel correlator using a temporal image sequence", Proc. SPIE 5908, Optical Information Systems III, 590815 (16 September 2005); https://doi.org/10.1117/12.616551

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available