A low bandwidth integer motion estimation module for MPEG-2 to H.264 transcoding

Author

Wei, Xianghui ; Tang, Wenming ; Tian, Guifen ; Goto, Satoshi

Author_Institution

Grad. Sch. of Inf., Waseda Univ., Kitakyushu

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

1470

Lastpage

1473

Abstract

Motion estimation (ME) is a computation and data intensive processing in video coding system. In MPEG-2 to H.264 transcoding, ME of H.264 encoder end is simplified by reusing MPEG-2 motion vector (MV) to curtail search window. However reusing MPEG-2 MV brings difficulty in applying search window reuse method, which plays a critical role in bandwidth reduction. Based on method proposed in [1], a hardware architecture is proposed for integer motion estimation (IME) of MPEG-2 to H.264 transcoding. Experiment results shows the proposed architecturepsilas bandwidth is 70.6% of H.264 regular IME (Level C+ scheme, 2 MB stitched), while the on-chip memory is 11.7% of that.

Keywords

code standards; motion estimation; transcoding; vectors; video coding; H.264 encoder; H.264 transcoding; MPEG-2 motion vector; data intensive processing; hardware architecture; low bandwidth integer motion estimation module; search window reuse method; video coding system; Bandwidth; Costs; Hardware; Motion estimation; Production systems; Streaming media; Transcoding; Transform coding; Video coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746309

Filename

4746309