Fast Inter Mode Decision Algorithm for H.264/AVC

Author

Yao Cheng ; Si Yujuan

Author_Institution

Coll. of Commun. & Eng., Jilin Univ., Changchun, China

fYear

2009

fDate

17-19 Oct. 2009

Firstpage

1

Lastpage

3

Abstract

A novel inter mode decision algorithm is proposed. Three methods are adopted in order to improve coding efficiency. Firstly, early skip mode decision. Secondly, the candidate modes can be decided based on the cost of motion estimation (J_motion) and the cost of mode decision (J_mode). Thirdly, fast intra mode decision algorithm is proposed. Some unnecessary computation of motion estimation (ME) and RDO are omitted in the new algorithm. Thus, the encoding time is reduced drastically with neglected loss of image quality. Through the experimental result and analysis, this paper makes a thorough analysis of the correlation between motion cost and mode selection cost. As a result, a reliable screening method of large mode is proposed.

Keywords

motion estimation; video coding; H.264/AVC; early skip mode decision; image quality; intermode decision algorithm; intramode decision algorithm; mode selection; motion estimation; reliable screening method; Automatic voltage control; Computational complexity; Costs; Educational institutions; Image coding; Image motion analysis; Image quality; Motion analysis; Motion estimation; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing, 2009. CISP '09. 2nd International Congress on

Conference_Location

Tianjin

Print_ISBN

978-1-4244-4129-7

Electronic_ISBN

978-1-4244-4131-0

Type

conf

DOI

10.1109/CISP.2009.5301501

Filename

5301501