Fast algorithm of phase masks for image encryption in the Fresnel domain
- 1 August 2006
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 23 (8), 1870-1874
- https://doi.org/10.1364/josaa.23.001870
Abstract
A high performance lensless optical security system based on the discrete Fresnel transform is presented. Two phase-only masks are generated with what we believe to be a novel and efficient algorithm. Their position coordinates and the wavelength are used as encoding parameters in the encryption process. Compared with previous studies, the main advantage of this proposed encryption system is that it does not need any iterative algorithms to produce the masks, and that makes it very efficient and easy to implement without losing the encryption security.Keywords
This publication has 21 references indexed in Scilit:
- Optical image encryption by random shifting in fractional Fourier domainsOptics Letters, 2003
- Optical encryption based on iterative fractional Fourier transformOptics Communications, 2002
- Double-lock for image encryption with virtual optical wavelength.Optics Express, 2002
- Optical image encryption based on multifractional Fourier transformsOptics Letters, 2000
- Optical encryption by double-random phase encoding in the fractional Fourier domainOptics Letters, 2000
- Optoelectronic information encryption with phase-shifting interferometryApplied Optics, 2000
- Phase-only optical encryptionOptics Letters, 2000
- Encrypted optical storage with wavelength-key and random phase codesApplied Optics, 1999
- Encrypted optical memory system using three-dimensional keys in the Fresnel domainOptics Letters, 1999
- Optical image encryption based on input plane and Fourier plane random encodingOptics Letters, 1995