Now showing items 1-3 of 3

  • Generalized lifting with adaptive local pdf estimation for image coding 

    Rolon Garrido, Julio Cesar; Mendoça, Eduardo; Salembier Clairon, Philippe Jean (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    In this paper we introduce an adaptive local pdf estimation strategy for the construction of Generalized Lifting (GL) mappings in the wavelet domain. Our approach consists in trying to estimate the local pdf of the ...
  • Improved local pdf estimation in the wavelet domain for generalized lifting 

    Rolon Garrido, Julio Cesar; Salembier Clairon, Philippe Jean (2010)
    Conference report
    Open Access
    Generalized Lifting (GL) has been studied for lossy image compression in [2,3]. It has been demonstrated that the method leads to a significant reduction of the wavelet coefficients energy and entropy. The definition ...
  • Modeling of contours in wavelet domain for generalized lifting image compression 

    Rolon Garrido, Julio Cesar; Ortega, Antonio; Salembier Clairon, Philippe Jean (2009)
    Conference report
    Open Access
    This paper introduces the design of context-based models of contours in the wavelet domain, which are used to construct generalized lifting (GL) mappings for image compression. The GL context-based mapping may significantly ...