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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 21 — Jul. 20, 2013
  • pp: 5247–5255

Lensless optical data hiding system based on phase encoding algorithm in the Fresnel domain

Yen-Yu Chen, Jian-Hong Wang, Cheng-Chung Lin, and Hone-Ene Hwang  »View Author Affiliations


Applied Optics, Vol. 52, Issue 21, pp. 5247-5255 (2013)
http://dx.doi.org/10.1364/AO.52.005247


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Abstract

A novel and efficient algorithm based on a modified Gerchberg–Saxton algorithm (MGSA) in the Fresnel domain is presented, together with mathematical derivation, and two pure phase-only masks (POMs) are generated. The algorithm’s application to data hiding is demonstrated by a simulation procedure, in which a hidden image/logo is encoded into phase forms. A hidden image/logo can be extracted by the proposed high-performance lensless optical data-hiding system. The reconstructed image shows good quality and the errors are close to zero. In addition, the robustness of our data-hiding technique is illustrated by simulation results. The position coordinates of the POMs as well as the wavelength are used as secure keys that can ensure sufficient information security and robustness. The main advantages of this proposed watermarking system are that it uses fewer iterative processes to produce the masks, and the image-hiding scheme is straightforward.

© 2013 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(200.3050) Optics in computing : Information processing
(070.2025) Fourier optics and signal processing : Discrete optical signal processing

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: February 20, 2013
Revised Manuscript: May 19, 2013
Manuscript Accepted: May 20, 2013
Published: July 18, 2013

Citation
Yen-Yu Chen, Jian-Hong Wang, Cheng-Chung Lin, and Hone-Ene Hwang, "Lensless optical data hiding system based on phase encoding algorithm in the Fresnel domain," Appl. Opt. 52, 5247-5255 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-21-5247

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