{"id":18499,"date":"2018-03-09T09:07:03","date_gmt":"2018-03-09T09:07:03","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/relaciones-entre-sombreado-y-contraste-percibido\/"},"modified":"2018-03-09T09:07:03","modified_gmt":"2018-03-09T09:07:03","slug":"relaciones-entre-sombreado-y-contraste-percibido","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/psicologia\/relaciones-entre-sombreado-y-contraste-percibido\/","title":{"rendered":"Relaciones entre sombreado y contraste percibido"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Carlos Chac\u00f3n G\u00f3mez <\/strong><\/h2>\n<p>El sombreado constituye una fuente de informaci\u00f3n primordial a la hora de obtener una representaci\u00f3n adecuada del mundo visible. Tradicionalmente, la investigaci\u00f3n en esta \u00e1rea ha dedicado atenci\u00f3n a dos aspectos fundamentales, como son la forma tridimensional percibida y la direcci\u00f3n de la fuente de iluminaci\u00f3n. En este trabajo se analiza otro aspecto asociado a este tipo de informaci\u00f3n, como es el contraste percibido.  tras mostrar la existencia de ciertas alteraciones en el contraste percibido a trav\u00e9s de un estudio preliminar, el apartado experimental se dedica inicialmente a cuantificar el grado en que el contraste percibido viene afectado por el tipo de sombreado, atendiendo a caracter\u00edsticas como son la direcci\u00f3n en que se producen los cambios en luminancia y la polaridad del mismo. posteriormente se comprueba la relaci\u00f3n existente entre este fen\u00f3meno y ciertas asimetr\u00edas encontradas con este tipo de est\u00edmulos en experimentos de b\u00fasqueda visual, a partir de las cuales se deduce que es m\u00e1s f\u00e1cil detectar un elemento sombreado interpretable como \u00abhueco\u00bb entre otros interpretables como \u00abprotuberancias\u00bb que a la inversa. Por \u00faltimo, se estudia la relaci\u00f3n entre el contraste percibido y la direcci\u00f3n de la fuente de iluminaci\u00f3n, que permiten determinar que las alteraciones en el primero dependen claramente de la segunda.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Relaciones entre sombreado y contraste percibido<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Relaciones entre sombreado y contraste percibido <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Carlos Chac\u00f3n G\u00f3mez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/07\/2002<\/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>largo Ruiz Gallego<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis J\u00e1\u00f1ez escalada <\/li>\n<li>Manuel Suero su\u00f1e (vocal)<\/li>\n<li>Ana julia Garriga trillo (vocal)<\/li>\n<li>carmen Mu\u00f1oz ted\u00f3 (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Carlos Chac\u00f3n G\u00f3mez El sombreado constituye una fuente de informaci\u00f3n primordial a la hora de obtener [&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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