{"id":114930,"date":"2018-03-11T10:43:10","date_gmt":"2018-03-11T10:43:10","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/comprehensive-retinal-image-analysis-image-processing-and-feature-extraction-techniques-oriented-to-the-clinical-task\/"},"modified":"2018-03-11T10:43:10","modified_gmt":"2018-03-11T10:43:10","slug":"comprehensive-retinal-image-analysis-image-processing-and-feature-extraction-techniques-oriented-to-the-clinical-task","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/optica\/comprehensive-retinal-image-analysis-image-processing-and-feature-extraction-techniques-oriented-to-the-clinical-task\/","title":{"rendered":"Comprehensive retinal image analysis: image processing and feature extraction techniques oriented to the clinical task"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Andr\u00e9s Guillermo Marrugo Hern\u00e1ndez <\/strong><\/h2>\n<p>La captura de imagen digital es una parte fundamental de los procedimientos m\u00e9dicos modernos. Provee de documentaci\u00f3n visual, un registro permanente para los pacientes y m\u00e1s importante la posibilidad de extraer informaci\u00f3n sobre muchas enfermedades. La oftalmolog\u00eda es un rama de la medicina que depende considerablemente del an\u00e1lisis de im\u00e1genes digital. Por medio de la imagen digital se puede establecer un diagn\u00f3stico temprano incluso antes que los primeros s\u00edntomas comiencen a aparecer. Este trabajo contribuye al an\u00e1lisis digital de tales im\u00e1genes y los problemas que surgen a lo largo del proceso de formaci\u00f3n de imagen. Este campo se le conoce como an\u00e1lisis de imagen retiniana. En esta tesis se han propuesto soluciones a problemas asociados con la adquisici\u00f3n de imagen retiniana y el monitoreo de cambios temporales en patolog\u00edas retinianas. Espec\u00edficamente, los problemas de iluminaci\u00f3n no-uniforme, baja calidad de imagen, enfoque autom\u00e1tico, y an\u00e1lisis multi-canal. Sin embargo, existen situaciones inevitables en que se adquieren im\u00e1genes de baja calidad, como im\u00e1genes emborronadas debido a las aberraciones del ojo. Este problema lo hemos abordado utilizando dos metodolog\u00edas para la deconvoluci\u00f3n ciega de im\u00e1genes emborronadas. En la primera aproximaci\u00f3n, consideramos que el emborronamiento es invariante espacialmente y en la segunda aproximaci\u00f3n extendimos el trabajo y propusimos un m\u00e9todo m\u00e1s general espacialmente variante.  para el desarrollo de algoritmos hemos construido soluciones de preprocesado que  han permitido la extracci\u00f3n de caracter\u00edsticas de relevancia m\u00e9dica, como la segmentaci\u00f3n del disco \u00f3ptico y la detecci\u00f3n y visualizaci\u00f3n de cambios temporales en la retina. Resultados experimentales significativos obtenidos en im\u00e1genes reales provenientes de la pr\u00e1ctica cl\u00ednica demuestran la aplicabilidad de las soluciones propuestas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Comprehensive retinal image analysis: image processing and feature extraction techniques oriented to the clinical task<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Comprehensive retinal image analysis: image processing and feature extraction techniques oriented to the clinical task <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Andr\u00e9s Guillermo Marrugo Hern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/11\/2013<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>varela Mill\u00e1n Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  ignacio pedro Campos coloma <\/li>\n<li>barbara Zitov\u00e1 (vocal)<\/li>\n<li>  (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Andr\u00e9s Guillermo Marrugo Hern\u00e1ndez La captura de imagen digital es una parte fundamental de los procedimientos m\u00e9dicos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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