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Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Author "Ballester, Coloma"

Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Author "Ballester, Coloma"

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  • Oliver, Maria; Haro Ortega, Gloria; Dimiccoli, Mariella; Mazin, Baptiste; Ballester, Coloma (Springer, 2016)
    This paper presents a computational model to recover the most likely interpretation of the 3D scene structure from a planar image, where some objects may occlude others. The estimated scene interpretation is obtained by ...
  • Fedorov, Vadim; Ballester, Coloma (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    This work presents an extension of the Non-Local Means denoising method, that effectively exploits the affine invariant self-similarities present in images of real scenes. Our method provides a better image denoising ...
  • Fedorov, Vadim; Ballester, Coloma (Image Processing On Line, 2018)
    Image and video comparison is often approached by comparing patches of visual information. In this work we present a detailed description and implementation of an affine invariant patch simi- larity measure that performs ...
  • Gamonal, Ferran P.; Ballester, Coloma; Haro Ortega, Gloria; Meinhardt-Llopis, Enric; Palomares, Roberto P. (Editor Image Processing On Line, 2019)
    We present a detailed analysis of FALDOI, a large displacement optical flow method proposed by P. Palomares et al. This method requires a set of discrete matches, which can be extremely sparse, and an energy functional ...
  • 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 ...
  • Vitoria, Patricia; Ballester, Coloma (Springer, 2018)
    Flare spot is one type of are artifact caused by a number of conditions, frequently provoked by one or more high-luminance sources within or close to the camera field of view. When light rays coming from a high-luminance ...
  • Palomares, Roberto P.; Meinhardt Llopis, Enric; Ballester, Coloma; Haro Ortega, Gloria (Springer, 2017)
    We propose a large displacement optical flow method that introduces a new strategy to compute a good local minimum of any optical flow energy functional. The method requires a given set of discrete matches, which can be ...
  • Fedorov, Vadim; Arias Martínez, Pablo; Sadek, Rida; Facciolo Furlan, Gabriele; Ballester, Coloma (SIAM (Society for Industrial and Applied Mathematics), 2015)
    In this paper we study the problem of comparing two patches of images defined on Riemannian/nmanifolds which in turn can be defined by each image domain with a suitable metric depending on/nthe image. For that we single ...
  • Andreu, Fuensanta; Ballester, Coloma; Caselles, Vicent; Mazón, Jose (Elsevier, 2001)
    We introduce a new concept of solution for the Dirichlet problem for the total variational flow named entropy solution. Using Kruzhkov's method of doubling variables both in space and in time we prove uniqueness and a ...
  • Ballester, Coloma; Caselles, Vicente; Monasse, Pascal (EDP Sciences, 2003)
    In [CITE], Kronrod proves that the connected components of isolevel sets of a continuous function can be endowed with a tree structure. Obviously, the connected components of upper level sets are an inclusion tree, and the ...

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