Optoelectronic face recognition system using diffractive optical elements: design and evaluation of compact parallel joint transform correlator (COPaC)

Kashiko Kodate; Eriko Watanabe; Rieko Inaba

doi:10.1117/12.450455

13 December 2001 Optoelectronic face recognition system using diffractive optical elements: design and evaluation of compact parallel joint transform correlator (COPaC)

Kashiko Kodate, Eriko Watanabe, Rieko Inaba

Author Affiliations +

Proceedings Volume 4455, Micro- and Nano-optics for Optical Interconnection and Information Processing; (2001) https://doi.org/10.1117/12.450455
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Individual identification based on biological characteristics such as fingerprint, iris and countenance is regarded as a highly essential technique in security systems. As a simple and rapid recognition system satisfying required performance, we have proposed an opto-electronic system, which combines a parallel joint transform correlator (PJTC) with a personal computer. In this paper, the PJTC method using a new design multiple diffractive optical element as a Fourier transform lens was reviewed and proved to be one of the most practical optical computers for face recognition. Furthermore, based on these first trial results, we proposed the design and fabrication of a portable type compact PJTC (COPaC), of which the size is 23 X 15 X 16.3 cm³ and the weight is 4 kg. We obtained its high accuracy performance for one-to-one correlation using 300 front facial images in a database and proved its practicability. Additionally we performed experiments on ID-less discrimination of twins who look alike for human eyes. Successful recognition rate was obtained, indicating its excellent performance and feasibility.

Citation Download Citation

Kashiko Kodate, Eriko Watanabe, and Rieko Inaba "Optoelectronic face recognition system using diffractive optical elements: design and evaluation of compact parallel joint transform correlator (COPaC)", Proc. SPIE 4455, Micro- and Nano-optics for Optical Interconnection and Information Processing, (13 December 2001); https://doi.org/10.1117/12.450455

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