Bitstream Scaling and Encoding Methods for MPEG Video Dedicated to Media Synchronization in a Network

• ICHIKAWA Akio

  Faculty of engineering, Tokyo Institute of Technology

• TSUSHIMA Takashi

  Faculty of engineering, Tokyo Institute of Technology

• YOSHIDA Toshiyuki

  Faculty of engineering, Tokyo Institute of Technology

• SAKAI Yoshinori

  Faculty of engineering, Tokyo Institute of Technology

抄録

This paper proposes a bitstream scaling technique for MPEG video for the purpose of media synchronizations. The proposed scaling technique can reduce the frame rate as well as the bit rate of an MPEG data sequence to fit them to the values specified by a synchronization system. The advantage of the proposed technique over existing scaling methods is that it is considering not only the performance of synchronization but also the picture quality of the resulting sequences. To further improve the quality of sequences scaled by the proposed method, this paper also proposes an MPEG encoding technique which sets some of the parameters suitable for the scaling. An experiment using these techniques in an actual media synchronization system has illustrated the usefulness of the proposed approach.

収録刊行物

• IEICE transactions on communications

  IEICE transactions on communications 81 (8), 1637-1646, 1998-08-25

  一般社団法人電子情報通信学会

キーワード

• MPEG video
• distributed multimedia system
• media synchronization
• bitstream scaling

詳細情報

• CRID: 1570572702511556736
• NII論文ID: 110003218232
• NII書誌ID: AA10826261
• ISSN: 09168516
• 本文言語コード: en
• データソース種別:
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