Fast Intra Mode Decision Algorithm Based on Spatial-Domain Energy for H.264/AVC

Author

Yinbo Liu ; Xingang Liu ; Zhixin Shen ; Yang, L.T.

Author_Institution

Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2013

fDate

16-18 July 2013

Firstpage

1357

Lastpage

1361

Abstract

In this paper, we proposed a fast intra mode decision algorithm based on spatial-domain energy for H.264/AVC. First of all, the relevance between macroblock (MB) and its 4x4 sub-blocks is employed in our algorithm to determine the Intra prediction block size. And then, in order to further reduce the computational complexity of Intra mode decision radically, mode candidate reduction algorithm is released by using the information abstracted from the MB or its sub-blocks. Compared with H.264 reference software, the proposed algorithm maintains the encoding performance efficiently by slight decrease in PSNR and increase in Bitrate. However, it achieves above 84% reduction of computation complexity in average.

Keywords

computational complexity; video coding; H.264 reference software; H.264/AVC; Intra prediction block size; MB; computational complexity; encoding performance; fast intra mode decision algorithm; macroblock; mode candidate reduction algorithm; spatial-domain energy; Algorithm design and analysis; Computational complexity; Encoding; Prediction algorithms; Software algorithms; Video coding; H.264/AVC; Intra Prediction; RDO; fast mode decision;

fLanguage

English

Publisher

ieee

Conference_Titel

Trust, Security and Privacy in Computing and Communications (TrustCom), 2013 12th IEEE International Conference on

Conference_Location

Melbourne, VIC

Type

conf

DOI

10.1109/TrustCom.2013.163

Filename

6680985