TY - JOUR
T1 - Rate control scheme for MPEG transcoder considering Drift-Error Propagation
AU - Nagayoshi, Isao
AU - Kasai, Hiroyuki
AU - Tominaga, Hideyoshi
PY - 2000
Y1 - 2000
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0033692299&partnerID=8YFLogxK
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U2 - 10.1117/12.386583
DO - 10.1117/12.386583
M3 - Conference article
AN - SCOPUS:0033692299
VL - 4067 (I)
SP - 485
EP - 496
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
T2 - Visual Communications and Image Processing 2000
Y2 - 20 June 2000 through 23 June 2000
ER -