Share Email Print
cover

Proceedings Paper

Optical security by use of a randomly selected binary phase code
Author(s): Bor Wang; Ching-Cherng Sun; Wei-Chia Su
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An optical security system using a random selected binary phase code is proposed. A random binary phase encoded light is incident on a holographic recording material and writes gratings in the material with a reference plane wave. The recording material can be regarded as an optical lock while the phase code acts as the key. As the pixel number is 5 X 20, the decryption probability is less than 10-10 when arbitrary phase code is used for decryption. The decryption probability decreases dramatically as the pixel number increases. Furthermore, the security system performs good tolerance to data loss of the phase code.

Paper Details

Date Published: 1 October 1999
PDF: 6 pages
Proc. SPIE 3804, Algorithms, Devices, and Systems for Optical Information Processing III, (1 October 1999); doi: 10.1117/12.363964
Show Author Affiliations
Bor Wang, National Central Univ. (Taiwan)
Ching-Cherng Sun, National Central Univ. (Taiwan)
Wei-Chia Su, National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 3804:
Algorithms, Devices, and Systems for Optical Information Processing III
Bahram Javidi; Demetri Psaltis, Editor(s)

© SPIE. Terms of Use
Back to Top