中国邮电高校学报(英文) ›› 2009, Vol. 16 ›› Issue (2): 103-107.doi: 10.1016/S1005-8885(08)60212-5
• Artificial Intelligence • 上一篇 下一篇
李志成,刘涛,张永军,顾畹仪
LI Zhi-cheng, LIU Tao, ZHANG Yong-jun, GU Wan-yi
摘要：
This article presents an efficient rate control scheme for H.264/AVC video coding in low bit rate environment. In the proposed scheme, an improved rate-distortion (RD) model by both analytical and empirical approaches is developed. It involves an enhanced mean absolute difference estimating method and a more rate-robust distortion model. Based on this RD model, an efficient macroblock-layer rate control scheme for H.264/AVC video coding is proposed. Experimental results show that this model encodes video sequences with higher peak signal-to-noise ratio gains and generates bit stream closer to the target rate.
