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Proceedings Paper

Fingerprint identification by use of a volume holographic optical correlator
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Paper Abstract

We propose an optical correlator system using volume hologram for database of matched filter. Optical correlator has high speed and parallel processing characteristics of optics. Matched filters are recorded into a volume hologram that can store data with high density, transfer them with high speed, and select a randomly chosen data element. The multiple reference images of database are prerecorded in a photorefractive crystal in the form of Fourier transform images, simply by passing the image displayed in a spatial light modulator through a Fourier transform lens. The angular multiplexing method for multiple holograms of database is achieved by controlling the reference directions with a step motor. Experimental results show that the proposed system can be used for fingerprint recognition.

Paper Details

Date Published: 9 March 1999
PDF: 5 pages
Proc. SPIE 3715, Optical Pattern Recognition X, (9 March 1999); doi: 10.1117/12.341313
Show Author Affiliations
Seung-Hyun Lee, Kwangwoon Univ. (South Korea)
Sang-Yi Yi, Electronics and Telecommunications Research Institute (South Korea)
Eun-Soo Kim, Kwangwoon Univ. (South Korea)


Published in SPIE Proceedings Vol. 3715:
Optical Pattern Recognition X
David P. Casasent; Tien-Hsin Chao, Editor(s)

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