A Two-Layer Real-Time Rate Control Algorithm Based on Lagrange Optimum Algorithm

作     者：HU Feng LIU Jia CHEN Shuzhen HU Feng, LIU Jia, CHEN Shuzhen School of Electronic Information, Wuhan University, Wuhan 430079, Hubei, China

作者机构：School of Electronic Information Wuhan University Wuhan 430079 Hubei China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2009年第14卷第1期

页      面：35-38页

学科分类：0810[工学-信息与通信工程] 07[理学] 08[工学] 081001[工学-通信与信息系统] 070102[理学-计算数学] 0701[理学-数学] 

基　　金：Supported by the National High-Technology Research and Development Program of China (863 Program) (2001AA132050-03) the Key Project of Chinese Ministry of Education (211CERS-10) 

主　　题：H.264 Lagrange optimum peak signal to noise ratio(PSNR) quantize rate-distortion 

摘      要：Because of the iterative process in the rate control algorithm of the H.264 draft, it is not suitable for real-time transmission. A two-layer real-time rate control algorithm based on the Lagrange optimum algorithm is proposed. This algorithm consists of two layers, namely, the group of pictures （GOP） layer and the frame layer. The simulation results show that the proposed algorithm is competitive in terms of peak signal-to-noise ratio （PSNR）, real bitrates and the Q-value among frames over the original algo- rithm.