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Análisis de la eficiencia de un método de multiplexado óptico-virtual, usando modulación teta

dc.creatorVargas Valencia, Javier
dc.date2017-05-02
dc.date.accessioned2021-10-19T20:40:26Z
dc.date.available2021-10-19T20:40:26Z
dc.identifierhttps://revistas.itm.edu.co/index.php/tecnologicas/article/view/699
dc.identifier10.22430/22565337.699
dc.identifier.urihttp://hdl.handle.net/20.500.12622/5345
dc.descriptionWe present an efficient virtual-optical multiplexing method for compressing information contained in gray level images. The efficiency is measured using three parameters: quality factors of recovered images, memory saving percentage achieved, and number of multiplexed images in the package. Theta modulation techniques are applied, to process an N number of gray level images, by using a virtual-optical 2f architecture, from which we obtain a complex package M, to be stored as two images, amplitude and phase, in commercial formats. We apply pixel optimization and Fourier plane filtering to amplitude and phase images, respectively, storing only a percentage of the Fourier plane with a pixel dynamic range optimization. The stored package spends much less memory than individual images. The recovered images after the demultiplexing process are compared with the original ones by using correlation coefficient, obtaining high quality factors for decompressed images. We perform simulations, showing the efficiency of the proposed process, and our results are compared to the same factors reported in recent publications, making our improvements evident.en-US
dc.descriptionPresentamos un método de multiplexado óptico-virtual eficiente, para comprimir información contenida en imágenes en niveles de gris. La eficiencia se mide usando tres parámetros: Factores de calidad de las imágenes recuperadas, porcentaje de memoria ahorrada, y número de imágenes multiplexadas en el paquete. Se aplican técnicas de modulación teta, procesando un número N de imágenes en niveles de gris, usando una arquitectura óptico-virtual 2f, obteniendo un paquete complejo M, que es almacenando como dos imágenes, amplitud y fase de M, en formatos comerciales. Se aplica un filtrado al plano de Fourier y una optimización a los píxeles de las imágenes de amplitud y fase, respectivamente, almacenando solo un porcentaje del plano de Fourier con una optimización al rango dinámico para los píxeles de cada una de ellas. El paquete almacenado gasta mucho menos memoria que las imágenes individuales. Las imágenes recuperadas después del proceso de desmultiplexado se comparan con las originales mediante el coeficiente de correlación, obteniendo para las imágenes recuperadas factores de calidad altos. Se realizan simulaciones que muestran la eficiencia del proceso propuesto, y nuestros resultados son comparados con los mismos factores reportados en publicaciones recientes, haciendo evidentes los avances logrados en este trabajo.es-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherInstituto Tecnológico Metropolitano (ITM)en-US
dc.relationhttps://revistas.itm.edu.co/index.php/tecnologicas/article/view/699/681
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dc.rightshttps://creativecommons.org/licenses/by/3.0/deed.es_ESen-US
dc.sourceTecnoLógicas; Vol. 20 No. 39 (2017); 173-184en-US
dc.sourceTecnoLógicas; Vol. 20 Núm. 39 (2017); 173-184es-ES
dc.source2256-5337
dc.source0123-7799
dc.subjectImage multiplexingen-US
dc.subjectData Compressen-US
dc.subjectFourier Transformen-US
dc.subjectTheta modulationen-US
dc.subjectoptodigital simulation.en-US
dc.subjectMultiplexado de imágeneses-ES
dc.subjectCompresión de datoses-ES
dc.subjectTransformada de Fourieres-ES
dc.subjectModulación tetaes-ES
dc.subjectSimulación óptico-digitales-ES
dc.titleAnalysis of the efficiency of a virtualoptical multiplexing method, by using theta modulationen-US
dc.titleAnálisis de la eficiencia de un método de multiplexado óptico-virtual, usando modulación tetaes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeResearch Papersen-US
dc.typeArtículos de investigaciónes-ES


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