Improved Fractional Pixel Motion Estimation Algorithm for H.264/AVC

Author

Shen, Yanfei ; Dai, Feng ; Zhang, Yongdong ; Li, Jintao

Author_Institution

Inst. of Comput. Technol., Chinese Acad. of Sci., Beijing

Volume

2

fYear

2006

fDate

16-20 2006

Abstract

In H.264/AVC fractional pixel motion compensation is adopted in order to achieve more accurate motion description and higher compression efficiency. It, however, remarkably increased computation load in motion estimation (ME) process for video coder. In this paper an improved fractional pixel ME algorithm is proposed to reduce its computation load, which is based on the fact that the distribution of the fractional motion vector (MV) is centered on the best integer pixel. Experiment results show that our proposed algorithm can reduce 75% computation load at most and can also keep rate distortion performance as compared with full fractional ME method used in H.264 video coder

Keywords

data compression; image resolution; motion compensation; motion estimation; video coding; H.264/AVC; fractional motion vector; fractional pixel motion estimation algorithm; integer pixel; motion compensation; video coder; Automatic voltage control; Computational efficiency; Distributed computing; IEC standards; ISO standards; Motion estimation; Rate-distortion; Transform coding; Video coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2006 8th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-9736-3

Electronic_ISBN

0-7803-9736-3

Type

conf

DOI

10.1109/ICOSP.2006.345632

Filename

4129113