An improved inter frame error concealment in H.264/AVC

Jun Wang, Lei Wang, Shen Li, Takeshi Ikenaga, Satoshi Goto

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Transmission of compressed video over error prone channels may result in packet losses or errors, which can significantly degrade the image quality. Aimed this problem, non-normative error concealment (EC) is recommended in H.264/AVC to recover the lost image. By analyzing of non-normative inter EC, this paper focused on improvement of it. Firstly, since the "guessed"/ recovered MV (motion vector) in existing EC is not so close to the real MV, a refined MV recovery is proposed to get a more accurate "guessed" MV. Secondly an improved MV selection criterion (side matching criterion) is proposed, which is trying to "guess"/approach a lost MB (macroblock)'s real/original side match distortion, instead of "guess"/approach value 0 in traditional inter EC. In addition, for MV refinement scheme, inspired by MV searching in motion estimation, we adopt a diamond searching for MV recovery. Both objective and subjective image quality evaluation in experiments show that our proposal achieves a better image recovery compared with non-normative inter EC.

本文言語English
ホスト出版物のタイトルASICON 2007 - 2007 7th International Conference on ASIC Proceeding
ページ794-797
ページ数4
DOI
出版ステータスPublished - 2007 12 1
イベント2007 7th International Conference on ASIC, ASICON 2007 - Guilin, China
継続期間: 2007 10 262007 10 29

出版物シリーズ

名前ASICON 2007 - 2007 7th International Conference on ASIC Proceeding

Conference

Conference2007 7th International Conference on ASIC, ASICON 2007
CountryChina
CityGuilin
Period07/10/2607/10/29

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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