Exploració per tema "Maximum entropy methods"

Ara es mostren els items 1-7 de 7

    • A new positive time-frequency distribution 

      Rodríguez Fonollosa, Javier; Nikias, C L (1994)
      Text en actes de congrés
      Accés obert
      This article studies the formulation of new members of the Cohen-Posch (1985) class of positive time-frequency energy distributions. Members of this class are always positive functionals and satisfy the marginal constraints. ...

    • A non-extensive maximum entropy based regulations method for bad conditioned inverse problems 

      Rebollo Neira, Laura; Fernández Rubio, Juan Antonio; Plastino, Angel Luís (1998-01)
      Article
      Accés obert
      A regularization method based on the non-extensive maximum entropy principle is devised. Special emphasis is given to the q=1/2 case. We show that, when the residual principle is considered as constraint, the q=1/2 generalized ...

    • Fast adaptive selection of best views 

      Vázquez Alcocer, Pere Pau; Sbert Cassasayas, Mateu (2003)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Automatic computation of best views of objects is very useful. For example, they can be used as the starting point of a scene exploration, or to enrich galleries of objects available through Internet by adding an image a ...

    • On the inverse windowed Fourier transform 

      Rebollo Neira, Laura; Fernández Rubio, Juan Antonio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1999-11-30)
      Article
      Accés obert
      The inversion problem concerning the windowed Fourier transform is considered. It is shown that, out of the infinite solutions that the problem admits, the windowed Fourier transform is the "optimal" solution according to ...

    • On the q=1/2 non-extensive maximum entropy distribution 

      Rebollo Neira, Laura; Plastino, Angel Luís; Fernández Rubio, Juan Antonio (1998-01)
      Article
      Accés obert
      A detailed mathematical analysis on the q = 1/2 non-extensive maximum entropy distribution of Tsallis' is undertaken. The analysis is based upon the splitting of such a distribution into two orthogonal components. One ...

    • Perception-based illumination information measurement and light source placement 

      Vázquez Alcocer, Pere Pau; Sbert Cassasayas, Mateu (2003)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The automatic selection of good viewing parameters is very complex. In most cases, the notion of good strongly depends on the concrete application. Moreover, when an intuitive definition of good view is available, it is ...

    • Positive time-frequency distributions based on joint marginal constraints 

      Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-08-01)
      Article
      Accés obert
      This correspondence studies the formulation of members of the Cohen-Posch class of positive time-frequency energy distributions. Minimization of cross-entropy measures with respect to different priors and the case of ...