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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 7 — Mar. 1, 2012
  • pp: 1000–1009

Multiple-image encryption by compressive holography

Hong Di, Kangfeng Zheng, Xin Zhang, Edmund Y. Lam, Taegeun Kim, You Seok Kim, Ting-Chung Poon, and Changhe Zhou  »View Author Affiliations


Applied Optics, Vol. 51, Issue 7, pp. 1000-1009 (2012)
http://dx.doi.org/10.1364/AO.51.001000


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Abstract

We present multiple-image encryption (MIE) based on compressive holography. In the encryption, a holographic technique is employed to record multiple images simultaneously to form a hologram. The two-dimensional Fourier data of the hologram are then compressed by nonuniform sampling, which gives rise to compressive encryption. Decryption of individual images is cast into a minimization problem. The minimization retains the sparsity of recovered images in the wavelet basis. Meanwhile, total variation regularization is used to preserve edges in the reconstruction. Experiments have been conducted using holograms acquired by optical scanning holography as an example. Computer simulations of multiple images are subsequently demonstrated to illustrate the feasibility of the MIE scheme.

© 2012 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(100.3020) Image processing : Image reconstruction-restoration
(100.3190) Image processing : Inverse problems
(090.1995) Holography : Digital holography
(060.4785) Fiber optics and optical communications : Optical security and encryption

ToC Category:
Holography

History
Original Manuscript: September 19, 2011
Revised Manuscript: January 10, 2012
Manuscript Accepted: January 10, 2012
Published: March 1, 2012

Citation
Hong Di, Kangfeng Zheng, Xin Zhang, Edmund Y. Lam, Taegeun Kim, You Seok Kim, Ting-Chung Poon, and Changhe Zhou, "Multiple-image encryption by compressive holography," Appl. Opt. 51, 1000-1009 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-7-1000

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