CDV-DVC: Transform-domain distributed video coding with multiple channel division

Sang Uk Park, Young Yoon Lee, Chang-Su Kim, Sang Uk Lee

Research output: Contribution to journalArticle

Abstract

This paper proposes an efficient distributed coding system based on multiple channel division. We develop the hierarchical motion refinement scheme using DC syndrome bits to generate high quality side information (SI) for Wyner-Ziv (WZ) frames. Moreover, we estimate local distortion characteristics of an SI frame and encode the SI frame in three coding modes: skip mode for the reliable channel, WZ mode for the medium channel, and intra mode for the unreliable channel. No bit is transmitted in the skip mode. Syndrome bits in the WZ mode are adaptively allocated based on the local distortion characteristics. The H.264 intra coding is performed in the intra mode to recover severely erroneous blocks. Experimental results show that the proposed algorithm provides significantly better rate-distortion performance than the state-of-the-art DISCOVER codec.

Original languageEnglish
Pages (from-to)534-543
Number of pages10
JournalJournal of Visual Communication and Image Representation
Volume24
Issue number5
DOIs
Publication statusPublished - 2013

Keywords

  • Channel division
  • Distributed video coding
  • Hierarchical motion estimation
  • Key frame-based estimate
  • Motion-compensated frame interpolation
  • Side information generation
  • Syndrome-based estimate
  • Wyner-Ziv coding

ASJC Scopus subject areas

  • Signal Processing
  • Media Technology
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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