Rate-distortion optimized rate shaping scheme for H.264 data partitioned video bitstream

被引：0
|
作者：
Zhang, Jinfeng [1 ]
Niu, Jianwei [1 ]
He, Rui [1 ]
Hu, Jianping [1 ]
Wang, Ronggang [2 ]
机构：
[1] School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
[2] France Telecom R and D, Beijing 100080, China
来源：
High Technology Letters | 2009年 / 15卷 / 01期
关键词：
Signal distortion - Data handling - Electric distortion - Binary sequences - Image reconstruction;
D O I：
10.3772/j.issn.1006-6748.2009.01.011
中图分类号：
学科分类号：
摘要：
To enable quality scalability and further improve the reconstructed video quality in rate shaping, a rate-distortion optimized packet dropping scheme for H.264 data partitioned video bitstream is proposed in this paper. Some side information is generated for each video bitstream in advance, while streaming such side information is exploited by a greedy algorithm to optimally drop partitions in a rate-distortion optimized way. Quality scalability is supported by adopting data partition instead of whole frame as the dropping unit. Simulation results show that the proposed scheme achieves a great gain in the reconstructed video quality over two typical frame dropping schemes, with the help of the fine granularity in dropping unit as well as rate-distortion optimization. Copyright © by High Technology Letters Press.
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页码：65 / 69
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