An adaptive spatial error concealment for H.264/AVC video stream

Jun Wang*, Lei Wang, Takeshi Ikenaga, Satoshi Goto

*この研究の対応する著者

研究成果: Conference contribution

抄録

Transmission of compressed video over error prone channels may result in packet losses or errors, which can significantly degrade the image quality. Therefore an error concealment scheme is applied at the video receiver side to mask the damaged video. Considering there are 3 types of MBs (Macro Blocks) in natural video frame, i.e., Textural MB, Edged MB, and Smooth MB, this paper proposes an adaptive spatial error concealment which can choose 3 different methods for these 3 different MBs. For criteria of choosing appropriate method, 2 factors are taken into consideration. Firstly, standard deviation of our proposed edge statistical model is exploited. Secondly, some new features of latest video compression standard H.264/AVC, i.e., intra prediction mode is also considered for criterion formulation. Compared with previous works, which are only based on deterministic measurement, proposed method achieves the best image recovery. Subjective and objective image quality evaluations in experiments confirmed this.

本文言語English
ホスト出版物のタイトルSIGMAP 2008 - Proceedings of the International Conference on Signal Processing and Multimedia Applications
ページ23-28
ページ数6
出版ステータスPublished - 2008 11 17
イベントSIGMAP 2008 - International Conference on Signal Processing and Multimedia Applications - Porto, Portugal
継続期間: 2008 7 262008 7 29

出版物シリーズ

名前SIGMAP 2008 - Proceedings of the International Conference on Signal Processing and Multimedia Applications

Conference

ConferenceSIGMAP 2008 - International Conference on Signal Processing and Multimedia Applications
国/地域Portugal
CityPorto
Period08/7/2608/7/29

ASJC Scopus subject areas

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 信号処理

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