Towards a stringent bit-rate conformance for frame-layer rate control in H.264/AVC

被引:0
|
作者
Tan, Evan [1 ]
Chen, Jing [2 ]
机构
[1] Univ New S Wales, Sch Engn & Comp Sci, Sydney, NSW 2052, Australia
[2] Natl ICT Australia, Neville Roach Lab, Sydney, NSW 2052, Australia
来源
ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2007 | 2007年 / 4810卷
基金
澳大利亚研究理事会;
关键词
bit allocation; complexity measure; frame-layer; H.264/AVC; linear R-Q model; rate control;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a novel frame-layer rate control technique that adaptively determines the frame complexity for bit allocation in order to satisfy the target bit-rate constraints without degrading the decoded video significantly. To do this, we first obtain the edge energy of each frame to measure the frame complexity as well as to determine the weighting of a frame for bit allocation. We then present a new bit-rate traffic model for bit allocation to achieve a better conformance to the target bit-rate. Finally, we integrate the edge energy complexity measure into the rate-quantization (R-Q) model. Our results shows robust improvements over the current rate control methods adopted in H.264/AVC in terms of meeting the target bit-rate as well as determining the quality of the decoded video.
引用
收藏
页码:128 / +
页数:2
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