Rate control scheme for MPEG transcoder considering drift-error propagation

Isao Nagayoshi; Hiroyuki Kasai; Hideyoshi Tominaga

doi:10.1117/12.386583

30 May 2000 Rate control scheme for MPEG transcoder considering drift-error propagation

Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386583
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

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.

Citation Download Citation

Isao Nagayoshi, Hiroyuki Kasai, and Hideyoshi Tominaga "Rate control scheme for MPEG transcoder considering drift-error propagation", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386583

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