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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 22 — Nov. 15, 2010
  • pp: 3817–3819

Optical image encryption based on diffractive imaging

Wen Chen, Xudong Chen, and Colin J. R. Sheppard  »View Author Affiliations


Optics Letters, Vol. 35, Issue 22, pp. 3817-3819 (2010)
http://dx.doi.org/10.1364/OL.35.003817


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Abstract

In this Letter, we propose a method for optical image encryption based on diffractive imaging. An optical multiple random phase mask encoding system is applied, and one of the phase-only masks is selected and laterally translated along a preset direction during the encryption process. For image decryption, a phase retrieval algorithm is proposed to extract a high-quality plaintext. The feasibility and effectiveness of the proposed method are demonstrated by numerical results. The proposed method can provide a new strategy instead of conventional interference methods, and it may open up a new research perspective for optical image encryption.

© 2010 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(100.2000) Image processing : Digital image processing
(100.3190) Image processing : Inverse problems
(070.2575) Fourier optics and signal processing : Fractional Fourier transforms
(100.4998) Image processing : Pattern recognition, optical security and encryption

ToC Category:
Image Processing

History
Original Manuscript: August 24, 2010
Revised Manuscript: October 11, 2010
Manuscript Accepted: October 12, 2010
Published: November 9, 2010

Citation
Wen Chen, Xudong Chen, and Colin J. R. Sheppard, "Optical image encryption based on diffractive imaging," Opt. Lett. 35, 3817-3819 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-22-3817


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