Rate control scheme for MPEG transcoder considering Drift-Error Propagation

Isao Nagayoshi*, Hiroyuki Kasai, Hideyoshi Tominaga


研究成果: Conference article査読


As the transform method of video bit stream to the required bit stream format, the video transcoder has been adopted in various applications. In this paper, we focus on a MPEG video transcoder that can reduce the required bit rate by using re-quantization in the DCT domain. Furthermore, we propose a rate control method for this MPEG video transcoder that takes into consideration the estimation of drift-error propagation. First, we show the transcoder architecture with calculation of `Drift-Error Propagation Ratio'. Next, we explain the proposed rate control method that uses minimization of the sum of re-quantization Error and drift-error. Finally, from simulation experiments, we compare the proposed rate control method to the traditional rate control method in terms of complexity, required buffer size and picture quality.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4067 (I)
出版ステータスPublished - 2000
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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