Spatial error concealment for H.264 using sequential directional interpolation

Myounghoon Kim, Hoonjae Lee, Sanghoon Sull

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Error concealment at the decoder restores erroneous macroblocks (MBs) caused by channel errors. In this paper, we propose a novel spatial error concealment algorithm based on prediction modes of intra-blocks which are included in a H.264-coded stream and highly correlated to the direction of local edge within the block. The key contribution is to sequentially interpolate each pixel in a lost MB by utilizing edge directions and strengths efficiently estimated from the neighboring blocks, preserving local edge continuity for more visually acceptable images. The proposed scheme is simple to implement and more reliably recover high-detailed content in corrupted MBs. The experimental results shows the proposed method achieves reduction in speed by 14%~39% as compared to existing method, and outperforms them in PSNR by 0.5~1dB as well as in subjective visual evaluation.

Original languageEnglish
Pages (from-to)1811-1818
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume54
Issue number4
DOIs
Publication statusPublished - 2008

Keywords

  • Automatic voltage control
  • Block-loss recovery
  • Distance measurement
  • Encoding
  • H.264
  • Image edge detection
  • Interpolation
  • Intra prediction modes
  • Pixel
  • Sequential Directional interpolation
  • Spatial error concealment
  • Visualization

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Spatial error concealment for H.264 using sequential directional interpolation'. Together they form a unique fingerprint.

  • Cite this