Enviaments recents

  • Region-based video coding using mathematical morphology 

    Salembier Clairon, Philippe Jean; Torres Urgell, Lluís; Meyer, F; Gu, C (1995-06)
    Article
    Accés obert
    This paper presents a region-based coding algorithm for video sequences. The coding approach involves a time-recursive segmentation relying on the pixels homogeneity, a region-based motion estimation, and motion compensated ...
  • An improvement on codebook search for vector quantization 

    Torres Urgell, Lluís; Huguet, J (1994-02)
    Article
    Accés obert
    Presents a simple but effective algorithm to speed up the codebook search in a vector quantization scheme when a MSE criterion is used. A considerable reduction in the number of operations is achieved. This algorithm was ...
  • Coding of details in very low bit-rate video systems 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (1994-06)
    Article
    Accés obert
    In this paper, the importance of including small image features at the initial levels of a progressive second generation video coding scheme is presented. It is shown that a number of meaningful small features called details ...
  • SURF-based mammalian species identification system 

    Otero Calviño, Beatriz; Rodríguez Luna, Eva; Ventura Queija, Jacint (2016-05-31)
    Article
    Accés restringit per política de l'editorial
    The development of tools for the automated identification of species will reduce the burden of routine identifications conducted by many biologists. The design of these tools is difficult because it depends on the proper ...
  • Definition of standards-based building blocks for multimedia content management 

    Llorente Viejo, Silvia; Delgado Mercè, Jaime; Maroñas Borras, Xavier; Florido Moreno, Jonathan (2015-09)
    Article
    Accés obert
    The emergence of new ways of rendering multimedia content from a multiplicity of devices like tablets, smartphones, consoles or smart TVs, opens a complete set of new opportunities for multimedia services providers. It is ...
  • Applied scientific method in the laboratory 

    Amante García, Beatriz; Martínez Martínez, María del Rosario; Cadenato Matia, Ana María; Gallego Fernández, María Isabel; Salán Ballesteros, Maria Núria (Tempus Publications, 2011)
    Article
    Accés restringit per política de l'editorial
  • Overview of the MPEG-21 Media Contract Ontology 

    Rodríguez Doncel, Víctor; Delgado Mercè, Jaime; Llorente Viejo, Silvia; Rodríguez Luna, Eva; Boch, Laurent (IOS Press, 2016-01-15)
    Article
    Accés obert
    The MPEG-21 Media Contract Ontology (MCO), a part of the standard ISO/IEC 21000, is an ontology to represent contracts dealing with rights on multimedia assets and intellectual property protected content in general. A core ...
  • Automatic summarization of soccer highlights using audio-visual descriptors 

    Raventós Mayoral, Arnau; Quijada Ferrero, Raúl; Torres Urgell, Lluís; Tarrés Ruiz, Francisco (Springer, 2015-06-30)
    Article
    Accés obert
    Automatic summarization generation of sports video content has been object of great interest for many years. Although semantic descriptions techniques have been proposed, many of the approaches still rely on low-level video ...
  • Teaching engineering with autonomous learning activities 

    Otero Calviño, Beatriz; Rodríguez Luna, Eva; Royo Chic, Pablo (Institut de Ciències de l'Educació (ICE), 2015-09-01)
    Article
    Accés obert
    This paper proposes several actvites that encourage self-learning in engineering courses. For each actvity, the context and the pedagogical issues addressed are described emphasizing strengths and weaknesses. Specifcally, ...
  • Formation and deposition of stable silver nanoparticles encapsulated in solid spheres 

    Sue, S. H.; Popa, Mónica Mihaela; Torres Padrosa, Víctor; Crespo Artiaga, Daniel; Shin, H. K.; Calderon Moreno, José Maria (2014-08-01)
    Article
    Accés restringit per política de l'editorial
    We prepared solid spheres, with diameters between 100 and 400 nm, encapsulating silver nanocrystallites (about 20 +/- 10 nm in diameter), by heating colloidal solutions of silver in methoxyethanol at 120 degrees C. Stable ...

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