Variable frame-rate video coding based on global motion analysis

被引：0
|
作者：
He, YW [1 ]
Zhao, XJ [1 ]
Yang, SQ [1 ]
Zhong, YZ [1 ]
机构：
[1] Tsing Hua Univ, Comp Sci & Technol Dept, Beijing 100084, Peoples R China
来源：
ADVANCES IN MUTLIMEDIA INFORMATION PROCESSING - PCM 2001, PROCEEDINGS | 2001年 / 2195卷
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a variable frame-rate video coding method based on global motion analysis for low bit rate video coding, Variable Frame-rate video coding outperforms fixed frame-rate coding taking full advantage of adjusting coding frame-rate according to the motion activity of video segments in the video sequence to be coded. Bit-rate can be reduced greatly in those video segments with low motion activity because lower coding frame-rate is used. Global motion analysis is utilized to evaluate the motion activity. The video sequence is classified into segments with low, medium and high motion activity according to global motion intensity. The results of variable frame-rate coding and fixed frame-rate coding methods are compared with test model of H.263 in order to evaluate the performance of proposed variable frame-rate coding method. Bit rate is reduced compared with Fixed frame rate coding With the same image quality.
引用
收藏
页码：426 / 433
页数：8
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