Rate control scheme for low-delay MPEG-2 video transcoder

Hiroyuki Kasai*, Maki Sugiura, Tsuyoshi Hanamura, Wataru Kameyama, Hideyoshi Tominaga


研究成果: Conference article査読


In this paper, we focus on the video transcoder as a bit rate reducer in a network node and propose a rate control scheme for a low-delay MPEG-2 video transcoder. First, we summarize the requirements of a rate control algorithm for low-delay transcoding. Next, based on these requirements, we describe the proposed rate control scheme in detail. Then, we analyze the input and output buffer delay and calculate the total delay time of the proposed transcoder. Finally, we evaluate the proposed scheme from the simulation results of experiments on picture quality, transcoding delay time and GOP (Group Of Pictures) structure information (N/M value) of the input bit stream. Consequently, we showed that the proposed scheme can provide the same picture quality as a traditional scheme and is independent of the GOP structure.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータスPublished - 2000 1月 1
イベントVisual Communications and Image Processing 2000 - Perth, Aust
継続期間: 2000 6月 202000 6月 23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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