{"id":35854,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aproximacion-de-grandes-nubes-de-puntos-tridimensionales-mediante-curvas-y-superficies-bsplines-no-uniformes\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"aproximacion-de-grandes-nubes-de-puntos-tridimensionales-mediante-curvas-y-superficies-bsplines-no-uniformes","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/aproximacion-de-grandes-nubes-de-puntos-tridimensionales-mediante-curvas-y-superficies-bsplines-no-uniformes\/","title":{"rendered":"Aproximacion de grandes nubes de puntos tridimensionales mediante curvas y superficies bsplines no uniformes."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Javier Delgado Urrecho <\/strong><\/h2>\n<p>El presente trabajo estudia, en una primera parte, el problema del dise\u00f1o inverso asistido por ordenador, analizando los diferentes tipos de formulaciones matem\u00e1ticas de los elementos geom\u00e9tricos presentes en los paquetes de dise\u00f1o asistido por ordenador (cad), desde los b\u00e1sicos hasta las curvas y superficies de forma libre como son las de bezier, bsplines, nurbs, formulaciones jer\u00e1rquicas, superficies regladas, coons, grodons, etc., as\u00ed como las diferentes estructuras de los sensores tridimensionales que permiten realizar la digitalizaci\u00f3n de las geometr\u00edas. En una segunda parte se introducen los problemas relacionados con la aproximaci\u00f3n de grandes conjuntos de puntos tridimensionales, centrando el estudio en el algoritmo de aproximaci\u00f3n por m\u00ednimos cuadrados mediante bsplines no uniformes. La tercera completa el estudio de la aproximaci\u00f3n mediante la elaboraci\u00f3n de un algoritmo que pondera las distintas zonas de error de tal forma que permite reducir substancialmente el n\u00famero de par\u00e1metros necesarios en la definici\u00f3n de las curvas y superficies bsplines aproximantes as\u00ed como el tiempo de computaci\u00f3n requerido.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aproximacion de grandes nubes de puntos tridimensionales mediante curvas y superficies bsplines no uniformes.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aproximacion de grandes nubes de puntos tridimensionales mediante curvas y superficies bsplines no uniformes. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Javier Delgado Urrecho <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Valladolid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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> Zatarain De Dios Isidro<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel Bermejo Herrero <\/li>\n<li>Carlos Montes Serrano (vocal)<\/li>\n<li>Francisco Hern\u00e1ndez Abad (vocal)<\/li>\n<li>Isabel Larracoechea Madariaga (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Javier Delgado Urrecho El presente trabajo estudia, en una primera parte, el problema del dise\u00f1o inverso asistido [&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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