A Novel Intra-frame Rate Control Algorithm for H.264/AVC

摘要：

In H.264/AVC, the rate distortion of Intra-frame (I-frame) significantly affects the video quality. This paper presents a novel I-frame rate control algorithm for H.264/AVC. In this algorithm, a rate control model is established among Bit Rate, Mean Square Error (MSE) and Quantization Parameter (QP). By adaptive updating this model, our proposed algorithm is capable of providing more accurate estimation for the QP of I-frame than other conventional methods. Experimental results show that it can not only significantly improve the video quality (up to 1.83 dB), but also keep the buffer occupancy much steadier comparing with the existing rate control algorithm G012.

关键词： rate control H.264/AVC bit rate Intra-frame.

作者: Miaohui Wang Bo Yan

作者单位: School of Computer Science Fudan University,Shanghai,China

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）