A new unequal error protection scheme based on FMO

Jhong Yu Shih, W. J. Tsai*

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

This paper presents a novel scheme for video transmission over error-prone networks. The proposed scheme exploits the error resilient features of H.264/AVC and employs an unequal error protection (UEP) approach to protect effectively the streams. A novel algorithm is proposed to classify macroblocks into slice groups using the explicit mode of Flexible Macroblock Ordering (FMO). A rate distortion optimized algorithm is used to assign unequal amounts of FEC protection to the resulting slice groups according to their importance. In addition, a Converged Motion Estimation (CME) is proposed to further improve the proposed UEP scheme. The idea behind the CME is to make the macroblocks be referenced in a skewed manner, such that highly important macroblocks are converged on only a few and the use of redundancy for error protection is efficient. Simulation results show the superiority of the proposed method over other approaches for transmission of H.264/AVC streams.

Original languageEnglish
Pages (from-to)461-476
Number of pages16
JournalMultimedia Tools and Applications
Volume47
Issue number3
DOIs
StatePublished - 1 May 2010

Keywords

  • Converged motion estimation
  • Error resilience
  • FMO
  • Flexible macroblock ordering
  • UEP
  • Unequal error protection

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