Variable block size error concealment scheme based on H.264/AVC non-normative decoder

Lei Wang, Jun Wang, Satoshi Goto, Takeshi Ikenaga

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

As the newest video coding standard, H.264/AVC can achieve high compression efficiency. At the same time, due to the high-efficiently predictive coding and the variable length entropy coding, it is more sensitive to transmission errors. So error concealment (EC) in H.264 is very important when compressed video sequences are transmitted over error-prone networks and erroneously received. To achieve higher EC performance, this paper proposes variable block size error concealment scheme (VBSEC) by utilizing the new concept of variable block size motion estimation (VBSME) in H.264 standard. This scheme provides four EC modes and four sub-block partitions. The whole corrupted macro-block (MB) will be divided into variable block size adaptively according to the actual motion. More precise motion vectors (MV) will be predicted for each sub-block. We also produce a more accurate distortion function based on spatio-temporal boundary matching algorithm (STBMA). By utilizing VBSEC scheme based on our STBMA distortion function, we can reconstruct the corrupted MB in the inter frame more accurately. The experimental results show that our proposed scheme can obtain maximum PSNR gain up to 1.72dB and 0.48dB, respectively compared with the boundary matching algorithm (BMA) adopted in the JM11.0 reference software and STBMA.

本文言語English
ホスト出版物のタイトル2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ104-107
ページ数4
ISBN(印刷版)9781424414475
DOI
出版ステータスPublished - 2007 1 1
イベント2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Xiamen, China
継続期間: 2007 11 282007 12 1

出版物シリーズ

名前2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings

Conference

Conference2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007
国/地域China
CityXiamen
Period07/11/2807/12/1

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 信号処理
  • ソフトウェア
  • 電子工学および電気工学
  • 数学 (全般)

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