{"id":29220,"date":"2018-03-09T09:22:15","date_gmt":"2018-03-09T09:22:15","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/la-transformacio-continua-de-la-dista-ncia-estudi-i-aplicacio-a-un-sistema-ocr\/"},"modified":"2018-03-09T09:22:15","modified_gmt":"2018-03-09T09:22:15","slug":"la-transformacio-continua-de-la-dista-ncia-estudi-i-aplicacio-a-un-sistema-ocr","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-valencia\/la-transformacio-continua-de-la-dista-ncia-estudi-i-aplicacio-a-un-sistema-ocr\/","title":{"rendered":"La transformaci\u00f3 cont\u00ednua de la dist\u00c1\u00a0ncia. estudi i aplicaci\u00f3 a un sistema ocr"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Joaquim Francesc Arlandis Navarro <\/strong><\/h2>\n<p>La presente tesis se centra en dos aspectos relacionados: la t\u00e9cnica de la transformaci\u00f3n de la distancia, con aplicaci\u00f3n al reconocimiento de caracteres manuscritos, y el estudio integral de un sistema de reconocimiento \u00f3ptico de caracteres.  se presenta la transformaci\u00f3n cont\u00ednua de la distancia (cdt), una nueva t\u00e9cnica de extracci\u00f3n de caracter\u00edsticas de im\u00e1genes multivaluadas que es una generalziaci\u00f3n de la transformaci\u00f3n de la distancia (dt) cl\u00e1sica aplicable \u00fanicamente a im\u00e1genes binarias. Se ha hecho la formalizaci\u00f3n correspondiente y un an\u00e1lisis de sus interpretaci\u00f3n natural y \u00e1mbitos de aplicaci\u00f3n. La aportaci\u00f3n se completa con la formulaci\u00f3n de una serie de medidas de disimilitud espec\u00edficas que pueden ser aplicadas en un clasificador basado en distancias que emplee mapas de caracter\u00edsticas de la transformada.  los resultados experimentales presentados usando estas medidas en la clasificaci\u00f3n de caracteres manuscritos aislados son positivos, alcanz\u00e1ndose, por ejemplo, un 0.69% de tasa de error en la clasificaci\u00f3n de d\u00edgitos manuscritos, o un 3.6% de error en el caso de las letras may\u00fasculas. As\u00ed mismo, se aporta y se eval\u00faa una metodolog\u00eda de clasificaci\u00f3n para la reducci\u00f3n del tiempo de computaci\u00f3n requerido en la clasificaci\u00f3n k-vecinos m\u00e1s cercanos empleando kd-trees y medidas de distancia basadas den la cdt, con la que se consigue una reducci\u00f3n muy significativa en el tiempo de computaci\u00f3n sin comportar p\u00e9rdida de prestaciones.  finalmente, se presenta una aproximaci\u00f3n a un sistema integral de reconocimiento \u00f3ptico de caracteres manuscritos en formularios que incluye aportaciones, como p.E., Una estrategia de rechazo para la detecci\u00f3n de caracteres anormales y uan propuesta para la correcci\u00f3n de las palabras de campos de formulario reconocidas por el clasificador basada en modelos de lenguaje k-explorables. en los dos casos se aportan medidas de fiabilidad originales y experimento<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>La transformaci\u00f3 cont\u00ednua de la dist\u00c1\u00a0ncia. estudi i aplicaci\u00f3 a un sistema ocr<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 La transformaci\u00f3 cont\u00ednua de la dist\u00c1\u00a0ncia. estudi i aplicaci\u00f3 a un sistema ocr <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Joaquim Francesc Arlandis Navarro <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/03\/2004<\/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>Juan  Carlos Perez Cortes<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: enrique Vidal ruiz <\/li>\n<li> Mic\u00f3 Andr\u00e9s Mar\u00eda  Luisa (vocal)<\/li>\n<li>francesc josep Ferri rabasa (vocal)<\/li>\n<li>jordi Vitri? marca (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Joaquim Francesc Arlandis Navarro La presente tesis se centra en dos aspectos relacionados: la t\u00e9cnica de la [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[16820],"tags":[17029,27578,82758,30472,82759,82760],"class_list":["post-29220","post","type-post","status-publish","format-standard","hentry","category-politecnica-de-valencia","tag-enrique-vidal-ruiz","tag-francesc-josep-ferri-rabasa","tag-joaquim-francesc-arlandis-navarro","tag-jordi-vitri-marca","tag-juan-carlos-perez-cortes","tag-mico-andres-maria-luisa"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/29220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=29220"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/29220\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=29220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=29220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=29220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}