Optimization on H.264 Motion Estimation Algorithm in Real-Time Video

被引：0
|
作者：
Qin Huanchang [1 ]
Zhu Yunfeng [1 ]
Huang Yong [2 ]
Qin Min [1 ]
Pan Dasheng [1 ]
Xie Dongqing [3 ]
Jing Xinxing [4 ]
机构：
[1] Baise Univ, Dept Phys & Elect Informat Engn, Baise, Peoples R China
[2] Baise Univ, Off Scientific Res Adm, Baise, Peoples R China
[3] Guangzhou Univ, Sch Comp Sci & Educ Software, Guangzhou, Guangdong, Peoples R China
[4] Guilin Univ Elect Technol, Sch Informat & Commun, Guilin, Peoples R China
来源：
ADVANCED RESEARCH ON COMPUTER SCIENCE AND INFORMATION ENGINEERING, PT I | 2011年 / 152卷
关键词：
real-time video; H.264; UMHexagonS algorithm;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper presents the UMHexagonS algorithm, reflected in two aspects: In the search process of this algorithm has added the adaptive threshold value and played a role ahead of deadline in the search process. saving the search time; Its has turned into live steps search and increased the step rectangle search, reducing the search time. The results show that the proposed method can not only guarantee the coding effect of UMHexagonS algorithm, improve the speed of motion estimation, but also saving the coding time, and improve the overall coding rate. Simulation results show that the H.264 encoder, using the proposed rate control algorithm, achieves a visual quality improvement up to 0.388 dB, meets better with target bit rates and produces more flat bit-rate curve than that using the H.264 previous rate control method.
引用
收藏
页码：475 / +
页数：2
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