Hybrid key/Wyner-Ziv frames with flexible macroblock ordering for improved low delay distributed video coding

D. Agrafiotis*, P. Ferré, D. R. Bull

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

This paper proposes a concealment based approach to generating the side information and estimating the correlation noise for low-delay, pixel-based, distributed video coding. The proposed method employs a macroblock pattern similar to the one used in the dispersed type FMO of H.264 for grouping the macroblocks of each frame into intra coded (key) and Wyner-Ziv groups. Temporal concealment is then used at the decoder for "concealing" the missing macroblocks (estimating the side information - predicting the Wyner-Ziv macroblocks). The actual intra coded/decoded macroblocks are used for estimating the correlation noise. The results indicate significant performance improvements relative to existing motion extrapolation based approaches (up to 25% bit rate reduction). © 2007 SPIE-IS&T.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers (SPIE)
Volume6508
EditionPART 1
ISBN (Print)0819466212, 9780819466211
Publication statusPublished - 2007
EventVisual Communications and Image Processing 2007 - San Jose, CA, United States
Duration: 30 Jan 20071 Feb 2007

Conference

ConferenceVisual Communications and Image Processing 2007
CountryUnited States
CitySan Jose, CA
Period30/01/071/02/07

Keywords

  • Concealment
  • Distributed video coding

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