[1]陈岚 李晓辉.改进的宏块层视频码率控制方法[J].计算机技术与发展,2006,(10):217-218.
 CHEN Lan,LI Xiao-hui.Improved Macroblock- Layer Rate Control Method[J].,2006,(10):217-218.
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改进的宏块层视频码率控制方法()

《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2006年10期
页码:
217-218
栏目:
应用开发研究
出版日期:
1900-01-01

文章信息/Info

Title:
Improved Macroblock- Layer Rate Control Method
文章编号:
1673-629X(2006)10-0217-02
作者:
陈岚 李晓辉
安徽大学电子科学与技术学院
Author(s):
CHEN Lan LI Xiao-hui
School of Electronic Science and Technology, Anhui University
关键词:
宏块层码率控制视频编码
Keywords:
maerohlock- layer rate control video eoding
分类号:
TN919.8
文献标志码:
A
摘要:
提出了一种新的宏块层码率控制方法,根据宏块运动剧烈程度,分配不同的量化步长,以便给图像复杂区分配更多的比特。并采用优化的编码顺序,有效地避免了传统编码顺序造成的质量下降问题。仿真结果表明,该方法能减少跳帧数,同时平均峰值信噪比也有所提高
Abstract:
In this paper, a new maeroblock - layer rate control method is proposed. As the scheme indicates, the quantization step sizes of the area are determined by the motion aetivity of the maeroblocks, so that the scheme distributes more bits to the motion maerobloeks. And an optimized order of quantization were put forward too. The optimized order of quantization can efficiently avoid the question that the quality decreased eaused by the conventional coding order. The simulation results show that the proposed rate control method can deerease number of frames skipped and average PSNR is also improved

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备注/Memo

备注/Memo:
陈岚(1976-),女,江苏南京人,硕士研究生,研究方向为多媒体通信;李晓辉,博士,教授,研究方向为宽带移动通信与多媒体通信
更新日期/Last Update: 1900-01-01