Iterative regularized error concealment algorithm

Min Cheol Hong*, Aggelos K. Katsaggelos

*Corresponding author for this work

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

In this paper, we propose an iterative regularized error concealment algorithm. The coded image can be degraded due to channel errors, network congestion, and switching system problems. We may have therefore seriously degraded images due to information loss. When the structure of the image and video codec is hierarchical, the degradation may be worse because of the inter-dependence of the coded information. In order to solve the error concealment problem of compressed images, we use an iterative regularized algorithm. We analyze the necessity of an oriented high pass operator we introduce and the requirement of changing the initial condition when all the quantized DCT coefficients in a block are lost. Several experimental results are presented.

Original languageEnglish (US)
Pages (from-to)82-91
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2952
DOIs
StatePublished - Dec 1 1996
EventDigital Compression Technologies and Systems for Video Communications - Berlin, Germany
Duration: Oct 7 1996Oct 7 1996

Keywords

  • Oriented high pass operator
  • Regularization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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