@inproceedings{b7a2c26440a34feda8dcec996d60c77a,
title = "An optimized rate control algorithm for H.264 under low delay constraint",
abstract = "It is very critical to determine a suitable quantity parameter (QP) in the rate control of video compression. The first frame QP of a GOP (group of picture) affects subsequent frame QP of this GOP, therefore, it has an important impact on the compression video quality of entire video sequences. However, the existing rate control algorithms do not pay much attention to this issue. In this paper, the initial QP prediction (IQPP) algorithm that can predict the initial QP precisely is proposed based on statistics of encoded frames and frame complexity, and the remaining QP prediction (RQPP) algorithm adopts Lagrangian optimization techniques to choose the appropriate QP for I-frame of other GOPs. Our experimental results show the proposed algorithm greatly enhances the performance of rate control and rate-distortion optimization (RDO). Furthermore, the average Peak Signal-to-Noise Ratio (PSNR) is improved and skipped frames are also reduced compared to traditional method under low delay constraint.",
keywords = "H.264, Quantity parameter, Rate control, Rate-distortion optimization, Video encoder",
author = "Wang, \{Li Feng\} and Chen Xiao and Niu, \{Jian Wei\} and Lu, \{Er Hong\}",
year = "2006",
doi = "10.1109/WiCOM.2006.309",
language = "英语",
isbn = "1424405173",
series = "2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006",
publisher = "IEEE Computer Society",
booktitle = "2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006",
address = "美国",
note = "2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 ; Conference date: 22-09-2006 Through 29-09-2006",
}