Optimized bit extraction using distortion estimation in the scalable extension of H.264/AVC

Ehsan Maani*, Aggelos K Katsaggelos

*Corresponding author for this work

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

1 Scopus citations

Abstract

The newly adopted scalable extension of H.264/AVC video coding standard (SVC), demonstrates significant improvements in coding efficiency in addition to an increased degree of supported scalability relative to the scalable profiles of prior video coding standards. For efficient adaptation of SVC bit streams to intermediate bit rates, the concept of Quality Layers has been introduced in the design of the SVC. The concept of Quality Layers allow a ratedistortion (RD) optimal bit extraction; However, existing Quality Layer assignment methods do not consider all Network Abstraction Layer (NAL) units from different layers for the optimization. In this paper, we first propose a technique to accurately and efficiently estimate the quality degradation resulting from discarding an arbitrary number of NAL units from multiple layers of a bitstream. Then, we utilize this distortion estimation technique to assign Quality Layers to NAL units for a more efficient extraction. Experimental results show that a significant gain can be achieved by the proposed schemes.

Original languageEnglish (US)
Title of host publicationProceedings - 10th IEEE International Symposium on Multimedia, ISM 2008
Pages660-666
Number of pages7
DOIs
StatePublished - Dec 1 2008
Event10th IEEE International Symposium on Multimedia, ISM 2008 - Berkeley, CA, United States
Duration: Dec 15 2008Dec 17 2008

Other

Other10th IEEE International Symposium on Multimedia, ISM 2008
CountryUnited States
CityBerkeley, CA
Period12/15/0812/17/08

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Electrical and Electronic Engineering

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