Visibility thresholds for quantization distortion in JPEG2000

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Visibility thresholds play an important role in finding appropriate quantization step sizes in image and video compression systems. In this paper we present a new method of measuring visibility thresholds for quantization distortion in JPEG2000. A quantization distortion model for each subband is developed based on the statistical characteristics of wavelet coefficients and the dead-zone quantizer of JPEG2000. Thresholds obtained from these quantization distortion models are image-adaptive and ensure visually lossless coding with low computational burden.

Original languageEnglish (US)
Title of host publication2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009
Pages228-232
Number of pages5
DOIs
StatePublished - Nov 11 2009
Event2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009 - San Diego, CA, United States
Duration: Jul 29 2009Jul 31 2009

Publication series

Name2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009

Other

Other2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period7/29/097/31/09

Keywords

  • Contrast sensitivity function
  • Human visual system
  • Visibility threshold
  • Visually lossless coding

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Software

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