ドリフト誤差推定に基づくMPEGトランスコーダレート制御方式の検討

概要

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As the transform method of video bitstream to the required bitrate, the video transcoder is adopted to various applications. In this paper, we focus on the MPEG video transcoder with the requantization in DCT domain, and propose the rate control method for the MPEG video transcoder considering the estimation of the drift-error propagation. First, we show the transcoder architechture with the calculation of "Drift-Error Propagation Ratio". Next, we explain proposed rate control method with minimization of Requantization-Error and Drift-Error. Last, from the simulation, we show the effectiveness of proposed rate control method in comparison to the traditional rate control method in terms of complexity, buffer size, picture quality.
社団法人映像情報メディア学会の論文
1999-08-26