A new optical random coding technique for security systems

Authors
Zalevsky, Z Mendlovic, D Levy, U Shabtay, G
Citation
Z. Zalevsky et al., A new optical random coding technique for security systems, OPT COMMUN, 180(1-3), 2000, pp. 15-20
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
180
Issue
1-3
Year of publication
2000
Pages
15 - 20
Database
ISI
SICI code
0030-4018(20000601)180:1-3<15:ANORCT>2.0.ZU;2-W
Abstract
A novel technique for random optical encoding is suggested. The proposed te chnique is based upon two binary masks: an encoding mask and a decoding mas k. Each mask in itself is random, and contains no information that may he d ecoded. Only when the two masks are joined together, the decoded informatio n is revealed. This way, the encoding of gray level as well as color inform ation is possible. This approach is especially suitable for security applic ations. (C) 2000 Published by Elsevier Science B.V. All rights reserved.