Accurate rate control method in transcoding

被引：4
|
作者：
Chen, L [1 ]
Cheng, LJ [1 ]
Yu, SY [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Image Commun & Informat Proc, Shanghai 200030, Peoples R China
来源：
ELECTRONICS LETTERS | 2004年 / 40卷 / 01期
关键词：
D O I：
10.1049/el:20040026
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An accurate rate control method for transcoding is presented. A linear relationship between the number of bits generated from the quantised discrete cosine transform (DCT) coefficients and the number of nonzero DCT coefficients is used in this method. By estimating variation of average values of run-level codes at different bit rates, errors of model parameters are corrected. Good results compared to TM5 are reported.
引用
收藏
页码：16 / 18
页数：3
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