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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 5 — Mar. 11, 2013
  • pp: 5373–5378

Optical encryption and QR codes: Secure and noise-free information retrieval

John Fredy Barrera, Alejandro Mira, and Roberto Torroba  »View Author Affiliations


Optics Express, Vol. 21, Issue 5, pp. 5373-5378 (2013)
http://dx.doi.org/10.1364/OE.21.005373


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Abstract

We introduce for the first time the concept of an information “container” before a standard optical encrypting procedure. The “container” selected is a QR code which offers the main advantage of being tolerant to pollutant speckle noise. Besides, the QR code can be read by smartphones, a massively used device. Additionally, QR code includes another secure step to the encrypting benefits the optical methods provide. The QR is generated by means of worldwide free available software. The concept development probes that speckle noise polluting the outcomes of normal optical encrypting procedures can be avoided, then making more attractive the adoption of these techniques. Actual smartphone collected results are shown to validate our proposal.

© 2013 OSA

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(060.4785) Fiber optics and optical communications : Optical security and encryption
(100.4998) Image processing : Pattern recognition, optical security and encryption

ToC Category:
Image Processing

History
Original Manuscript: December 19, 2012
Manuscript Accepted: January 9, 2013
Published: February 25, 2013

Citation
John Fredy Barrera, Alejandro Mira, and Roberto Torroba, "Optical encryption and QR codes: Secure and noise-free information retrieval," Opt. Express 21, 5373-5378 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-5-5373


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