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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 20 — Jul. 9, 2004
  • pp: 4011–4016

Shift-tolerance property of fully phase encryption that uses a joint transform correlator

Dong-Hoan Seo, Chang-Mok Shin, and Soo-Joong Kim  »View Author Affiliations


Applied Optics, Vol. 43, Issue 20, pp. 4011-4016 (2004)
http://dx.doi.org/10.1364/AO.43.004011


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Abstract

We technically investigate the robustness of an image encryption technique that uses a virtual phase image and a joint transform correlator (JTC) in the frequency domain. An encrypted image is obtained by the Fourier transform of the product of a virtual phase image, which camouflages the original image, and a random phase image. The resulting image is then decrypted by use of a decrypting key made from the proposed phase assignment rule in order to enhance the level of security. We demonstrate that the encrypted image generated by the proposed JTC-based decryption technique is robust to data loss and image shift.

© 2004 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.1160) Image processing : Analog optical image processing
(100.3010) Image processing : Image reconstruction techniques

History
Original Manuscript: September 15, 2003
Revised Manuscript: March 15, 2004
Published: July 10, 2004

Citation
Dong-Hoan Seo, Chang-Mok Shin, and Soo-Joong Kim, "Shift-tolerance property of fully phase encryption that uses a joint transform correlator," Appl. Opt. 43, 4011-4016 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-20-4011

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