PublisherIEEE Press. Institute of Electrical and Electronics Engineers
Rights accessOpen 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 wavelet coefficients conditioned to a context
formed by neighboring coefficients. To this end, we search in a
small causal window for similar contexts. This strategy is
independent of the wavelet filters used to transform the image.
Experimental results exhibit interesting gains in terms of energy
reduction comparable to those obtained in . In order to take
benefit from this energy reduction, specific entropy encoder should
be designed in the future.
CitationRolon, J.C.; Mendoça, E.; Salembier, P. Generalized lifting with adaptive local pdf estimation for image coding. A: Picture Coding Symposium. "PSC 2009". Chicago: IEEE Press. Institute of Electrical and Electronics Engineers, 2009, p. 1-4.
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