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Optical Engineering

Optimization of encrypted holograms in optical security systems
Author(s): Mitsuhiro Yamazaki; Junji Ohtsubo
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Paper Abstract

The method of the optimization for a binary phase hologram used in a security system is proposed. The hologram is made by a joint Fourier transform method and a simulated annealing technique is used for the optimization. A hologram of a fingerprint image with a random key reference is successfully optimized and almost the same image quality as the original one is obtained as a decoded image by the proposed method. The usefulness of the method in an optical security system is also discussed.

Paper Details

Date Published: 1 January 2001
PDF: 6 pages
Opt. Eng. 40(1) doi: 10.1117/1.1334947
Published in: Optical Engineering Volume 40, Issue 1
Show Author Affiliations
Mitsuhiro Yamazaki, Shizuoka Univ. (Japan)
Junji Ohtsubo, Shizuoka Univ. (Japan)


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