Generalized lifting with adaptive local pdf estimation for image coding

Julio C. Rolón, Eduardo Mendonça, Philippe Salembier

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

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 [8]. In order to take benefit from this energy reduction, specific entropy encoder should be designed in the future.

Original languageEnglish
Title of host publication2009 Picture Coding Symposium, PCS 2009
DOIs
StatePublished - 2009
Event2009 Picture Coding Symposium, PCS 2009 - Chicago, IL, United States
Duration: 6 May 20098 May 2009

Publication series

Name2009 Picture Coding Symposium, PCS 2009

Conference

Conference2009 Picture Coding Symposium, PCS 2009
Country/TerritoryUnited States
CityChicago, IL
Period6/05/098/05/09

Keywords

  • Adaptive local pdf estimation
  • Generalized lifting
  • Image coding
  • Wavelets

Fingerprint

Dive into the research topics of 'Generalized lifting with adaptive local pdf estimation for image coding'. Together they form a unique fingerprint.

Cite this