OPTICAL IMPLEMENTATION OF IMAGE ENCRYPTION USING RANDOM-PHASE ENCODING

Authors
NETO LG SHENG YL
Citation
Lg. Neto et Yl. Sheng, OPTICAL IMPLEMENTATION OF IMAGE ENCRYPTION USING RANDOM-PHASE ENCODING, Optical engineering, 35(9), 1996, pp. 2459-2463
Citations number
8
Categorie Soggetti
Optics
Journal title
Optical engineering → ACNP
ISSN journal
00913286
Volume
35
Issue
9
Year of publication
1996
Pages
2459 - 2463
Database
ISI
SICI code
0091-3286(1996)35:9<2459:OIOIEU>2.0.ZU;2-N
Abstract
In the optical implementation of image encryption using random phase e ncoding proposed by Refregier and Javidi the random phase mask is not band limited. Speckle noise can thus destroy optical reconstruction of the encrypted images. We demonstrate encryption of speckle-free kinof orms by smoothed random phase masks. Optical verification of the encry pted images is shown. (C) 1996 Society of Photo-Optical Instrumentatio n Engineers.