Speckle free optical watermarking based on pseudo-random phase encoding

Patino A.; Altamar Mercado, Hernando; Martínez-Santos, Juan Carlos

dc.contributor.editor	Altuve M.
dc.creator	Patino A.
dc.creator	Altamar Mercado, Hernando
dc.creator	Martínez-Santos, Juan Carlos
dc.date.accessioned	2020-03-26T16:32:42Z
dc.date.available	2020-03-26T16:32:42Z
dc.date.issued	2016
dc.identifier.citation	2016 21st Symposium on Signal Processing, Images and Artificial Vision, STSIVA 2016
dc.identifier.isbn	9781509037971
dc.identifier.uri	https://hdl.handle.net/20.500.12585/8977
dc.description.abstract	Watermarking 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.	eng
dc.description.sponsorship	Universidad Pontificia Bolivariana (UPB) Seccional Bucaramanga
dc.format.medium	Recurso electrónico
dc.format.mimetype	application/pdf
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers Inc.
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.source	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002518268&doi=10.1109%2fSTSIVA.2016.7743296&partnerID=40&md5=92f3b69e9106a10e82951b9a3f0ab9ed
dc.source	Scopus2-s2.0-85002518268
dc.title	Speckle free optical watermarking based on pseudo-random phase encoding
dcterms.bibliographicCitation	Aagedal, H., Schmid, M., Beth, T., Teiwes, S., Wyrowski, F., Chaussee, R., Theory of Speckles in Diffractive Optics and Its
dcterms.bibliographicCitation	Bräuer, R., Wyrowski, F., Bryngdahl, O., Diffusers in digital holography (1991) J. Opt. Soc. Am. A, 8 (3), pp. 572-578. , Mar
dcterms.bibliographicCitation	Chhetri, B.B., Serikawa, S., Shimomura, T., Heuristic algorithm for calculation of sufficiently randomized objectindependent diffuser for holography (2000) Algorithms and Systems for Optical Information Processing IV, Volume 4113 of Proc. SPIE, pp. 205-216. , In B. J. D. Psaltis, editor
dcterms.bibliographicCitation	Goodman, J., (2007) Speckle Phenomena in Optics: Theory and Applications.
dcterms.bibliographicCitation	Goodman, J.W., (2005) Introduction to Fourier Optics, , Roberts and Company Publishers, 3 edition
dcterms.bibliographicCitation	Rawat, S., Raman, B., A blind watermarking algorithm based on fractional fourier transform and visual cryptography (2012) Signal Processing, 92 (6), pp. 1480-1491
dcterms.bibliographicCitation	Wyrowski, F., Bryngdahl, O., Iterative Fourier-transform algorithm applied to computer holography (1988) J. Opt. Soc. Am. A, 5 (7), pp. 1058-1065. , Jul
datacite.rights	http://purl.org/coar/access_right/c_16ec
oaire.resourceType	http://purl.org/coar/resource_type/c_c94f
oaire.version	http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.source.event	21st Symposium on Signal Processing, Images and Artificial Vision, STSIVA 2016
dc.type.driver	info:eu-repo/semantics/conferenceObject
dc.type.hasversion	info:eu-repo/semantics/publishedVersion
dc.identifier.doi	10.1109/STSIVA.2016.7743296
dc.subject.keywords	Diffusers (optical)
dc.subject.keywords	Encoding (symbols)
dc.subject.keywords	Geometrical optics
dc.subject.keywords	Image coding
dc.subject.keywords	Image processing
dc.subject.keywords	Speckle
dc.subject.keywords	Vision
dc.subject.keywords	Watermarking
dc.subject.keywords	Input planes
dc.subject.keywords	Noise speckle
dc.subject.keywords	Numerical results
dc.subject.keywords	Optical applications
dc.subject.keywords	Optical image
dc.subject.keywords	Pseudo random
dc.subject.keywords	Random-phase encoding
dc.subject.keywords	Verification process
dc.subject.keywords	Signal processing
dc.rights.accessrights	info:eu-repo/semantics/restrictedAccess
dc.rights.cc	Atribución-NoComercial 4.0 Internacional
dc.identifier.instname	Universidad Tecnológica de Bolívar
dc.identifier.reponame	Repositorio UTB
dc.relation.conferencedate	30 August 2016 through 2 September 2016
dc.type.spa	Conferencia
dc.identifier.orcid	57192275310
dc.identifier.orcid	57192279306
dc.identifier.orcid	26325154200

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Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.