Title :
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
fDate :
Nov. 30 2008-Dec. 3 2008
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;
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
DOI :
10.1109/APCCAS.2008.4746309
