计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (24): 94-96.

• 学术探讨 • 上一篇    下一篇

H.264视频标准中码率控制算法的改进

程 波,陈真勇,熊 璋   

  1. 北京航空航天大学 计算机学院,北京 100083
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-08-21 发布日期:2007-08-21
  • 通讯作者: 程 波

Improvement of rate control algorithm in H.264 standard

CHENG Bo,CHEN Zhen-yong,XIONG Zhang   

  1. School of Computer Science and Technology,Beijing University of Aeronautics and Astronautics,Beijing 100083,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-08-21 Published:2007-08-21
  • Contact: CHENG Bo

摘要: 码率控制是视频压缩编码技术的一个重要部分。在许多应用中,视频序列都要求在恒定比特率的信道中传输,而压缩后的视频序列中的数据量通常是变化的,因此,需要通过码率控制技术来解决。对JVT-G012提案中的码率控制技术进行了深入详细的探讨,分析了此算法的不足,在此基础上进行了相应的改进,并通过实验进行了验证。

关键词: 视频编码, H.264, 码率控制, JVT-G012

Abstract: Rate control is a very important part of the video compressing code.In many applications,video sequence is required to transmit in constant rate channel,but the bit rate of the compressed video sequence is variable generally.It is necessary to solve this problem using rate control technology.Therefore,this paper discusses the rate control technology in JVT-G012 in detail,analyzes the disadvantage of this algorithm,gives the corresponding improvement and verifies via the experiments.

Key words: video coding, H.264, rate control, JVT-G012