Browsing by Author "Sadek, Rida"

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  • Linear multiscale analysis of similarities between images on Riemannian manifolds: practical formula and affine covariant metrics
    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 ...
  • On affine invariant descriptors related to SIFT
    Sadek, Rida; Constantinopoulos, Constantinos; Meinhardt Llopis, Enric; Ballester, Coloma; Caselles, Vicente (SIAM (Society for Industrial and Applied Mathematics), 2012)
    Using a classical result on algebraic invariants of the unimodular group, we present in this paper some basic geometric affine invariant quantities, and we use them to construct some distinctive descriptors for object ...
  • Some problems on temporally consistent video editing and object recognition
    Sadek, Rida (Universitat Pompeu Fabra, 2013-02-04)
    Video editing and object recognition are two significant fields in computer vi- sion: the first has remarkably assisted digital production and post-production tasks of a digital video footage; the second is considered ...

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