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  • Research Article
  • Open Access

Self-Conducted Allocation Strategy of Quality Layers for JPEG2000

  • 1, 2Email author,
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EURASIP Journal on Advances in Signal Processing20082008:728794

  • Received: 5 August 2008
  • Accepted: 12 November 2008
  • Published:


The rate-distortion optimality of a JPEG2000 codestream is determined by the density and distribution of the quality layers it contains. The allocation of quality layers is, therefore, a fundamental issue for JPEG2000 encoders, which commonly distribute layers logarithmically or uniformly spaced in terms of bitrate, and use a rate-distortion optimization method to optimally form them. This work introduces an allocation strategy based on the hypothesis that the fractional bitplane coder of JPEG2000 already generates optimal truncation points for the overall optimization of the image. Through these overall optimal truncation points, the proposed strategy is able to allocate quality layers without employing rate-distortion optimization techniques, to self-determine the density and distribution of quality layers, and to reduce the computational load of the encoder. Experimental results suggest that the proposed method constructs near-optimal codestreams in the rate-distortion sense, achieving a similar coding performance as compared with the common PCRD-based approach.


  • Information Technology
  • Optimization Technique
  • Quantum Information
  • Allocation Strategy
  • Fundamental Issue

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Authors’ Affiliations

Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA
Departament d'Enginyeria de la Informació i de les Comunicacions, Universitat Autònoma de Barcelona, 08290 Cerdanyola del Vallès, Barcelona, Spain


© Francesc Aulí-Llinás et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.