Cost-distortion optimized unequal error protection for object-based video communications

Haohong Wang*, Fan Zhai, Yiftach Eisenberg, Aggelos K. Katsaggelos

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

23 Scopus citations

Abstract

Object-based video coding is a relatively new technique to meet the fast growing demand for interactive multimedia applications. Compared with conventional frame-based video coding, it consists of two types of source data: shape information and texture information. Recently, joint source-channel coding for multimedia communications has gained increased popularity. However, very limited work has been conducted to address the problem of joint source-channel coding for object-based video. In this paper, we propose a cost-distortion optimal unequal error protection (UEP) scheme for object-based video communications. Our goal is to achieve the best video quality (minimum total expected distortion) with constraints on transmission cost and delay in a lossy network environment. The problem is solved using Lagarangian relaxation and dynamic programming. The performance of the proposed scheme is tested using simulations of a narrow-band block-fading wireless channel with additive white Gaussian noise and a simplified differentiated services Internet channel. Experimental results indicate that the proposed UEP scheme can significantly outperform equal error protection methods.

Original languageEnglish (US)
Pages (from-to)1505-1516
Number of pages12
JournalIEEE Transactions on Circuits and Systems for Video Technology
Volume15
Issue number12
DOIs
StatePublished - Dec 2005

Keywords

  • Differentiated service (Diffserv) network
  • Joint source-channel coding
  • Lossy network
  • MPEG-4 standard
  • Object-based video
  • Rate distortion
  • Unequal error protection (UEP)
  • Video coding
  • Video communications
  • Wireless channel

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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