Compact parallel joint transform correlator for facial recognition

Rieko Inaba; Naoko Kawakami; Kumiko Oguma; Eriko Watanabe; Kashiko Kodate

doi:10.1117/12.386853

24 May 2000 Compact parallel joint transform correlator for facial recognition

Rieko Inaba, Naoko Kawakami, Kumiko Oguma, Eriko Watanabe, Kashiko Kodate

Proceedings Volume 4089, Optics in Computing 2000; (2000) https://doi.org/10.1117/12.386853
Event: 2000 International Topical Meeting on Optics in Computing (OC2000), 2000, Quebec City, Canada

Abstract

We discuss the design of a compact parallel joint transform correlator (PJTC) using four binary zone plate array as a Fourier transform lens. The external dimensions of the hybrid opto-electronic correlator is 23 cm X 15 cm X 16.3 cm, which includes the PJTC system in the upper stage and some of driving circuits and an LD for a light source in the lower stage. Experimentally, we implemented this compact PJTC system for facial recognition with database of 100 persons and obtained reliable discrimination results. Furthermore, we propose a novel method of pre-processing so that any general users could easily operate the compact PJTC system and constantly obtained the same size extracted images, by fixing three points; the edges of both eyes and the low end of nose, when normalizing the facial image size. We confirmed the ability of our system to meet the conditions for recognition by JTC.

Citation Download Citation

Rieko Inaba, Naoko Kawakami, Kumiko Oguma, Eriko Watanabe, and Kashiko Kodate "Compact parallel joint transform correlator for facial recognition", Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); https://doi.org/10.1117/12.386853

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