Bandwidth reduction schemes for MPEG-2 to H.264 transcoder design

Author

Xianghui Wei ; Wenqi You ; Guifen Tian ; Yan Zhuang ; Ikenaga, Takeshi ; Goto, Satoshi

Author_Institution

Grad. Sch. of Inf., Production & Syst., Waseda Univ., Kitakyushu, Japan

fYear

2008

fDate

25-29 Aug. 2008

Firstpage

1

Lastpage

5

Abstract

In MPEG-2 to H.264 transcoding, MPEG-2 motion vector (MV) reuse is an effective technique to simplify motion estimation (ME) processing. The irregularity of MPEG-2 MV also brings difficulty in applying data reuse method for hardware design, which plays a critical role for bandwidth reduction. In this paper, two search window reuse methods are introduced for HDTV application. The Level C method utilizes horizontal search window reuse for most macroblock (MB), while the Level C+ method is designed for ultralow bandwidth applications by reusing both horizontal and vertical search window. Experiment results show both methods can achieve a low bandwidth level with negligible video quality loss.

Keywords

bandwidth compression; code standards; high definition television; motion estimation; search problems; transcoding; video coding; H.264 transcoder design; H.264 transcoding; HDTV application; Level C method; Level C± method; MPEG-2 MV; MPEG-2 motion vector; bandwidth reduction; data reuse method; hardware design; macroblock; motion estimation; search window reuse method; Bandwidth; Estimation; Memory management; Nonvolatile memory; Standards; System-on-chip; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference, 2008 16th European

Conference_Location

Lausanne

ISSN

2219-5491

Type

conf

Filename

7080467