Complexity Based Fast Coding Mode Decision for MPEG-2 / H.264 Video Transcoding

Author

Shen Li ; Lingfeng Li ; Ikenaga, Takeshi ; Ishiwata, Shunichi ; Matsui, Masaki ; Goto, Satoshi

Author_Institution

Graduate Sch. of Inf., Production & Syst., Waseda Univ., Fukuoka

fYear

2006

fDate

4-7 Dec. 2006

Firstpage

574

Lastpage

577

Abstract

The coexistence of MPEG-2 and its powerful successor H.264/AVC has created a huge need for MPEG-2/H.264 video transcoding. This paper proposes a 2D Sobel filter based motion vector domain method and a DCT domain method to measure macroblock complexity and realize efficient H.264 candidate mode decision. A new local edge based fast INTRA prediction mode decision method is also adopted to boost the encoding efficiency. Simulation results confirm that with the proposed methods the computational burden of a traditional transcoder can be reduced by 20% ~ 30% with only a negligible bit-rate increase for a wide range of video sequences

Keywords

discrete cosine transforms; image sequences; motion estimation; two-dimensional digital filters; video coding; 2D Sobel filter; DCT domain method; H.264/AVC; MPEG-2/H.264 video transcoding; discrete cosine transform; fast coding mode decision; motion vector domain method; video sequences; Automatic voltage control; Discrete cosine transforms; Educational institutions; Encoding; Filters; Motion estimation; Motion measurement; Production systems; Research and development; Transcoding; H.264; MPEG-2; complexity based; video transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on

Conference_Location

Singapore

Print_ISBN

1-4244-0387-1

Type

conf

DOI

10.1109/APCCAS.2006.342053

Filename

4145458