Browsing by Author "Vilardy Ortiz, Juan Manuel"
Now showing items 1-16 of 16
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Effects of using an encrypted image corrupted by noise and occlusion in a security system based on joint transform correlator and Gyrator transform
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference lecture
Open Access -
Experimental optical encryption scheme for the double random phase encoding using a nonlinear joint transform correlator
(2020-09-01)
Article
Restricted access - publisher's policyWe present a new experimental system for optical encryption using a nonlinear joint transform correlator (JTC) to implement the optical security technique of the double random phase encoding (DRPE). The DRPE, which is ... -
Generalized formulation of an encryption system based on a joint transform correlator and fractional Fourier transform
(Institute of Physics (IOP), 2014-12-01)
Article
Open AccessWe propose a generalization of the encryption system based on double random phase encoding (DRPE) and a joint transform correlator (JTC), from the Fourier domain to the fractional Fourier domain (FrFD) by using the fractional ... -
Image encryption system based on a nonlinear joint transform correlator for the simultaneous authentication of two users
(2019-01-01)
Article
Open AccessWe propose a new encryption system based on a nonlinear joint transform correlator (JTC) using the information of two biometrics (one digital fingerprint for each user) as security keys of the encryption system. In order ... -
Image quality and security through nonlinear joint transform encryption
(IEEE Press, 2016)
Conference report
Open Access -
Images encryption system based on a fractional joint transform correlator and nonlinear filtering
(2014)
Article
Open AccessA new optical security system for image encryption based on a fractional joint transform correlator and nonlinear filtering is proposed. The position of the lens in the proposed optical encryption setup can be chosen, so ... -
Influence of a perturbation in the Gyrator domain for a joint transform correlator-based encryption system
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2017)
Conference lecture
Restricted access - publisher's policy -
Integration of the photon-counting technique and a joint transform correlator to encrypt and authenticate images
(Red Iberoamericana de Óptica (RIAO), 2019)
Conference lecture
Restricted access - publisher's policy -
Joint transform correlator-based encryption system using the Fresnel transform and nonlinear filtering
(2013)
Conference report
Restricted access - publisher's policy -
Nonlinear image encryption using a fully phase nonzero-order joint transform correlator in the Gyrator domain
(Elsevier, 2015-12-14)
Article
Open Access© 2016 Elsevier Ltd. A novel nonlinear image encryption scheme based on a fully phase nonzero-order joint transform correlator architecture (JTC) in the Gyrator domain (GD) is proposed. In this encryption scheme, the two ... -
Nonlinear joint transform correlator architectures for images encryption, decryption and authentication systems
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2017)
Conference lecture
Restricted access - publisher's policy -
Nonlinear optical security system based on a joint transform correlator in the Fresnel domain
(2014-03-10)
Article
Open AccessA new optical security system for image encryption based on a nonlinear joint transform correlator (JTC) in the Fresnel domain (FrD) is proposed. The proposal of the encryption process is a lensless optical system that ... -
Nonlinear techniques for secure optical encryption and multifactor authentication
(Institute of Physics (IOP), 2018)
Part of book or chapter of book
Restricted access - publisher's policy -
Occlusion and noise tests on the encrypted image produced by a security system based on a joint transform correlator and the Fresnel transform
(Institute of Physics (IOP), 2019-06)
Article
Open AccessIn this work, the occlusion and noise test on the encrypted image produced by a joint transform correlator-based encryption system in the Fresnel domain (FrD) are computed and presented, in order to check the performance ... -
Secure image encryption and authentication using the photon counting technique in the Gyrator domain
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference lecture
Open Access -
Static and dynamic amplitude modulation of light in a twisted nematic liquid crystal display
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2013)
Conference lecture
Restricted access - publisher's policyA SLM has been experimentally characterized in terms of amplitude modulation versus the gray level distribution (input signal) electronically addressed to the pixelated display in two conditions: input constant with time, ...
