Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain

Not Accessible

Your library or personal account may give you access

Abstract

We propose a method of wavelength multiplexing based on a modified Gerchberg–Saxton algorithm (MGSA) and a cascaded phase modulation scheme in the Fresnel transform domain to reduce the cross talk in the multiple-image-encryption framework. First, each plain image is encoded to a complex function by using the MGSA. Next, the phase components of the created complex functions are multiplexed with different wavelength parameters, and then they are modulated before being combined together as a phase-only function, which is recorded in the first phase-only mask (POM). Finally, the second POM is generated by applying the MGSA again on the amplitude derived from the summation of the total created complex functions. Simulation results show that the cross talk between multiplexed images has been significantly reduced compared with an existing similar method. Therefore, the multiplexing capacity in encrypting multiple gray-scale images can be increased accordingly.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Lensless multiple-image optical encryption based on improved phase retrieval algorithm

Jian-Ji Huang, Hone-Ene Hwang, Chun-Yuan Chen, and Ching-Mu Chen
Appl. Opt. 51(13) 2388-2394 (2012)

Multiple-image encryption based on interference principle and phase-only mask multiplexing in Fresnel transform domain

Qu Wang, Qing Guo, Liang Lei, and Jinyun Zhou
Appl. Opt. 52(28) 6849-6857 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved