Experimental scrambling and noise reduction applied to the optical encryption of QR codes

dc.creatorBarrera, John Fredy
dc.creatorVélez, Alejandro
dc.creatorTorroba, Roberto Daniel
dc.date2014-08
dc.date2020-08-07T19:04:34Z
dc.date.accessioned2023-07-14T19:41:45Z
dc.date.available2023-07-14T19:41:45Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/101716
dc.identifierhttps://ri.conicet.gov.ar/11336/11854
dc.identifierhttps://doi.org/10.1364/OE.22.020268
dc.identifierissn:1094-4087
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7436322
dc.descriptionIn this contribution, we implement two techniques to reinforce optical encryption, which we restrict in particular to the QR codes, but could be applied in a general encoding situation. To our knowledge, we present the first experimental-positional optical scrambling merged with an optical encryption procedure. The inclusion of an experimental scrambling technique in an optical encryption protocol, in particular dealing with a QR code “container”, adds more protection to the encoding proposal. Additionally, a nonlinear normalization technique is applied to reduce the noise over the recovered images besides increasing the security against attacks. The opto-digital techniques employ an interferometric arrangement and a joint transform correlator encrypting architecture. The experimental results demonstrate the capability of the methods to accomplish the task.
dc.descriptionCentro de Investigaciones Ópticas
dc.formatapplication/pdf
dc.format20268-20277
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectFísica
dc.subjectEncryption
dc.subjectSecurity
dc.subjectSpeckle
dc.subjectProcessing
dc.titleExperimental scrambling and noise reduction applied to the optical encryption of QR codes
dc.typeArticulo
dc.typeArticulo


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