Visualitza per autor "Caselles, Vicente"

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  • Cardelino, Juan; Caselles, Vicente; Bertalmío, Marcelo; Randall, Gregory (SIAM (Society for Industrial and Applied Mathematics), 2013)
    We present a novel segmentation algorithm based on a hierarchical representation of images. The main contribution of this work is to explore the capabilities of the a contrario reasoning when applied to the segmentation ...
  • Ferradans Ramonde, Sira; Bertalmío, Marcelo; Provenzi, Edoardo; Caselles, Vicente (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Tone Mapping is the problem of compressing the range of a High-Dynamic Range image so that it can be displayed in a Low-Dynamic Range screen, without losing or introducing novel details: The final image should produce in ...
  • Ballester, Coloma; Bertalmío, Marcelo; Caselles, Vicente; Garrido Ostermann, Luis; Marques, Adrián; Ranchin, Florent (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Video is usually acquired in interlaced format, where each image frame is composed of two image fields, each field/nholding same parity lines. However, many display devices require progressive video as input; also, many ...
  • Igual, Laura; Preciozzi, Javier; Garrido, Luís; Almansa, Andrés; Caselles, Vicente; Rougé, Bernard (AIMS American Institute of Mathematical Sciences, 2007)
    In this work we propose a new automatic methodology for computing accurate digital elevation models (DEMs) in urban environments from low baseline stereo pairs that shall be available in the future from a new kind of earth ...
  • Ferradans Ramonde, Sira (Universitat Pompeu Fabra, 2011-09-29)
    In this thesis, we discuss three image processing topics: High Dynamic Range (HDR)image creation in scenes with motion, Tone Mapping (TM), and Demosaicking. The firstpart of this thesis focuses on the creation of HDR images ...
  • Facciolo Furlan, Gabriele; Arias, Pablo; Caselles, Vicente; Sapiro, Guillermo (Springer, 2009)
    A nonlocal variational formulation for interpolating a sparsel sampled image is introduced in this paper. The proposed variational formulation, originally motivated by image inpainting problems, encourages/nthe transfer ...
  • Ferradans Ramonde, Sira; Bertalmío, Marcelo; Caselles, Vicente (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Demosaicking is a particular case of interpolation problems where, from a scalar image in which each pixel has either the red, the green or the blue component, we want to interpolate the full-color image. State-of-the-art ...
  • Facciolo Furlan, Gabriele; Almansa, Andrés; Aujol, Jean-François; Caselles, Vicente (SIAM (Society for Industrial and Applied Mathematics), 2009)
    We propose a restoration algorithm for band limited images that considers irregular/n(perturbed) sampling, denoising, and deconvolution. We explore the application of a family of/nregularizers that allow to control the ...
  • Facciolo Furlan, Gabriele (Universitat Pompeu Fabra, 2011-03-03)
    The generation of urban digital elevation models from satellite images using stereo reconstruction techniques poses several challenges due to its precision requirements. In this thesis we study three problems related to ...
  • Meinhardt-Llopis, Enric (Universitat Pompeu Fabra, 2011-03-03)
    Aquesta tesi proposa una estructura de dades peremmagatzemar imatges tridimensionals. L'estructura da dades téforma d'arbre i codifica les components connexes dels conjunts denivell de la imatge. Aquesta estructura és ...
  • Haro Ortega, Gloria (Universitat Pompeu Fabra, 2005-07-11)
    There are two main subjects in this thesis: the first one deals with the numerical simulation of shallow water equations, the other one is the resolution of some problems in image processingThe first part of this dissertation ...
  • Alcoceba Hornos, Iván (2012-09)
    En este proyecto se estudia como generar un resumen de una colección de fotografías seleccionándolas automáticamente.Se construye un sistema capaz de permitir a un usuario subir una colección de imágenes a una plataforma ...
  • Lazcano, Vanel (Universitat Pompeu Fabra, 2016-02-04)
    In this thesis we tackle two problems, namely, the data interpolation prob-/nlem in the context of depth computation both for images and for videos, and/nthe problem of the estimation of the apparent movement of objects ...
  • Sadek, Rida (Universitat Pompeu Fabra, 2012-12-07)
    Video editing and object recognition are two significant fields in computer vi-sion: the first has remarkably assisted digital production and post-productiontasks of a digital video footage; the second is considered ...
  • Arias Martínez, Pablo (Universitat Pompeu Fabra, 2013-10-18)
    In this thesis we tackle two problems which deal with filling-in the information in a region of an image or a video, where the data is either missing or has to be replaced. These problems have applications in the context ...