{"id":87051,"date":"2018-03-10T00:11:47","date_gmt":"2018-03-10T00:11:47","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/recovery-of-3-d-structure-and-motion-from-the-deformation-of-an-active-contour-in-a-sequense-of-monocular-images\/"},"modified":"2018-03-10T00:11:47","modified_gmt":"2018-03-10T00:11:47","slug":"recovery-of-3-d-structure-and-motion-from-the-deformation-of-an-active-contour-in-a-sequense-of-monocular-images","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/recovery-of-3-d-structure-and-motion-from-the-deformation-of-an-active-contour-in-a-sequense-of-monocular-images\/","title":{"rendered":"Recovery of 3 d structure and motion from the deformation of an active contour in a sequense of monocular images"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Elisa Martinez Marroquin <\/strong><\/h2>\n<p>Esta tesis presenta un metodo para la extraccion de informacion 3 d a partir del analisis de la deformacion de un contorno activo en una secuencia de im\u00e1genes monoculares. La aplicaci\u00f3n que ha motivado el desarrollo es el guiado de un robot caminante hacia un objetivo visual en un entrorno no estructurado. La informacion 3 d obtenida corresponde al movimiento del robot respecto al objetivo, el tiempo hasta el contacto con el objetivo y la estructura 3 d del entorno.  el contorno activo se ajusta al contorno de oclusion del objetivo y la deformacion de este a lo largo de la secuencia permite el calculo del movimiento 3d, de la profundidad escalada del objetivo, del tiempo hasta el contacto entre la camara y el objetivo, y de las lineas epipolares que guian la correspondencia entre diferentes vistas de la escena. Una vez obtenidas las correspondencias, estas se usan en combinacion con la informacion del contorno para calcular la estructura 3d de la escena.  la propuesta es esencialmente diferente de las tecnicas convencionales basadas solo en el campo de velocidades o desplazamientos. Tambien es diferente de las tecnicas basadas en patrones estandar, como marcas cuadradas o lineas, ya que el objeto usado como referencia se define en-linea y puede tener cualqueir forma. El metodo se presenta para diferentes grados de calibracion de la camara. Se empieza con el caso de una camara totalmente calibrada, y despues de rescribe para una camara no calibrada con los parametros de calibracion internos constantes. Se discute la influencia de los diferentes parametros de calibracion internos constantes. Se discute la influencia de los diferentes parametros internos y se presenta la posibilidad de autocalibrarlos usando la informacion del contorno activo. Finalmente, se presenta el analisis del contorno activo en el caso de una camara no calibrada con parametros internos que varian en el tiempo.  los resultados muestran la robustez del metodo a movi<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Recovery of 3 d structure and motion from the deformation of an active contour in a sequense of monocular images<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Recovery of 3 d structure and motion from the deformation of an active contour in a sequense of monocular images <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Elisa Martinez Marroquin <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Ram\u00f3n llull<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/10\/2000<\/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>Carme Torras Gen\u00eds<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: josep Amat girbau <\/li>\n<li>eugenia Santamaria (vocal)<\/li>\n<li>Jos\u00e9 Villanueva Juan (vocal)<\/li>\n<li>Francisco Javier Jove boix (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Elisa Martinez Marroquin Esta tesis presenta un metodo para la extraccion de informacion 3 d a partir [&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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