We implement a fully automatic fast face recognition system by using a 1000 frame/s optical parallel correlator designed and assembled by us. The operational speed for the 1:N (i.e., matching one image against N, where N refers to the number of images in the database) identification experiment (4000 face images) amounts to less than 1.5 s, including the preprocessing and postprocessing times. The binary real-only matched filter is devised for the sake of face recognition, and the system is optimized by the false-rejection rate (FRR) and the false-acceptance rate (FAR), according to 300 samples selected by the biometrics guideline. From trial 1:N identification experiments with the optical parallel correlator, we acquired low error rates of 2.6% FRR and 1.3% FAR. Facial images of people wearing thin glasses or heavy makeup that rendered identification difficult were identified with this system.
© 2005 Optical Society of America
Original Manuscript: May 21, 2004
Revised Manuscript: November 2, 2004
Manuscript Accepted: November 6, 2004
Published: February 10, 2005
Eriko Watanabe and Kashiko Kodate, "Implementation of a high-speed face recognition system that uses an optical parallel correlator," Appl. Opt. 44, 666-676 (2005)