Speckle free optical watermarking based on pseudo-random phase encoding

dc.contributorAltuve M.
dc.creatorPatino A.
dc.creatorAltamar Mercado, Hernando
dc.creatorMartínez-Santos, Juan Carlos
dc.date.accessioned2020-03-26T16:32:42Z
dc.date.available2020-03-26T16:32:42Z
dc.date.created2020-03-26T16:32:42Z
dc.date.issued2016
dc.identifier2016 21st Symposium on Signal Processing, Images and Artificial Vision, STSIVA 2016
dc.identifier9781509037971
dc.identifierhttps://hdl.handle.net/20.500.12585/8977
dc.identifier10.1109/STSIVA.2016.7743296
dc.identifierUniversidad Tecnológica de Bolívar
dc.identifierRepositorio UTB
dc.identifier57192275310
dc.identifier57192279306
dc.identifier26325154200
dc.description.abstractWatermarking is a process of embedding copiright information into an image to verify the ownership without any kind of corruption. In optical applications, the usage of diffusers is required to obtain a homogeneously distributed spectrum. However, the use of a diffuser in the input plane and the finite size of the sensor leave the recovered watermark with noise speckles. This noise affects negatively the verification process. We propose the usage of pseudo-random band-limited diffusers to place watermarks on optical images using a method based on Fourier-transform and random phase encoding algorithm. Such diffusers can help to recover a free-speckle watermark. The robustness to typical attacks is analyzed. Numerical results have shown its effectiveness. © 2016 IEEE.
dc.languageeng
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation30 August 2016 through 2 September 2016
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rightsAtribución-NoComercial 4.0 Internacional
dc.sourcehttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85002518268&doi=10.1109%2fSTSIVA.2016.7743296&partnerID=40&md5=92f3b69e9106a10e82951b9a3f0ab9ed
dc.sourceScopus2-s2.0-85002518268
dc.source21st Symposium on Signal Processing, Images and Artificial Vision, STSIVA 2016
dc.titleSpeckle free optical watermarking based on pseudo-random phase encoding


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