Rate control scheme for MPEG transcoder considering Drift-Error Propagation

Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga

研究成果: Conference article

抜粋

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.

元の言語English
ページ(範囲)485-496
ページ数12
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4067 (I)
DOI
出版物ステータスPublished - 2000
イベントVisual Communications and Image Processing 2000 - Perth, Aust
継続期間: 2000 6 202000 6 23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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