Ponències/Comunicacions de congressos
Recent Submissions
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Frecuencia de parpadeo y parpadeos incompletos en seis condiciones controladas de lectura en formato electrónico y en papel
(2016)
Conference lecture
Restricted access - publisher's policy -
Graphical ray tracing through imaging optical systems for optometrists
(ITMO University (University of Information Technologies, Mechanics and Optics), 2008)
Conference lecture
Restricted access - publisher's policyIn the approach of geometrical optics, ray tracing is an illustrative tool to determine the light path through an optical system. We show different educational resources used to help students to develop their skills ... -
Photon-counting imaging based double-random-phase encryption for information security and verification
(Institute of Electrical and Electronics Engineers (IEEE), 2011)
Conference report
Restricted access - publisher's policyThe integration of photon-counting imaging techniques to optical encryption systems permits to increase information authentication robustness against intruder attacks. Photon-counting imaging generates distributions with ... -
Optical implementation of multifocal programmable lens with single and multiple axes
(Institute of Physics (IOP), 2010)
Conference lecture
Open AccessIn this work we analyse the generation of a diffractive optical element (DOE) consisting of a multifocal Fresnel lens by means of an LCoS (liquid cristal on silicon) spatial light modulator (SLM). The multifocal lens is ... -
Experimental color encryption in a joint transform correlator architecture
(Institute of Physics (IOP), 2010)
Conference lecture
Open AccessWe present an experimental color image encryption by using a photorefractive crystal and a joint transform correlator (JTC) architecture. We achieve the color storing by changing the illumination wavelength. One JTC aperture ... -
Spatial and speed characterization of a phase-only LCoS spatial light modulator for an improved performance in optical information processing
(ITMO University (University of Information Technologies, Mechanics and Optics), 2008)
Conference lecture
Restricted access - publisher's policy -
Codificación de la función de fase de una lente compuesta multifocal presentada por un modulador LCoS
(2009)
Conference lecture
Restricted access - publisher's policy -
Optical validation of combined images for high-secure identification. ID tags and processors
(2007)
Conference report
Restricted access - publisher's policyIn this work, we use a novel multifactor encryption-authentication technique that reinforces optical security by allowing the simultaneous AND-verification of more than one primary image. This optical technique is attractive ... -
Encryption and validation of multiple signals for optical identification systems
(IOP Publishing, 2007)
Conference report
Restricted access - publisher's policyMultifactor encryption-authentication technique reinforces optical security by allowing the simultaneous AND-verification of more than one primary image. Instead of basing the identification on a unique signature or piece ... -
Correlation between polychromatic image quality metrics to predict visual acuity in pseudophakic patients
(EPJ Web of Conferences, 2020)
Conference lecture
Open AccessThe optical quality of three multifocal intraocular lenses (MIOLs) was measured in vitro using the area under the modulation transfer function (MTFa) and energy efficiency (EE). We evaluated those metrics through-focus ... -
Tolerancia de la especie Schoenoplectus americanus (Totora) para el tratamiento de aguas residuales en Haparquilla, Cusco, Perú
(2018)
Conference lecture
Open AccessLas plantas acuáticas (macrófitos) en los humedales construidos para el tratamiento de aguas residuales permiten la estabilización de superficie de los lechos de tratamiento, transportan oxigeno a las raíces, favorecen el ... -
Training for using constructed wetlands to treat landfill leachate in Anta-Cusco
(CRANFIELD UNIVERSITY, 2015)
Conference lecture
Open AccessThe work aims at designing and implementing a demonstrative pilot plant to treat landfill leachate to: i. Encourage of the use the constructed wetlands for water quality improvement ii. To improve technical training ...
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