Exploració per autor "Rolon Garrido, Julio Cesar"

Ara es mostren els items 2-3 de 3

    • Improved local pdf estimation in the wavelet domain for generalized lifting 

      Rolon Garrido, Julio Cesar; Salembier Clairon, Philippe Jean (2010)
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      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)
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      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 ...