Efficient intra mode decision for AVS to H.264/AVC transcoding - Details

Author：

Minyue, Wang (Minyue, Wang.) | Guangmin, Sun (Guangmin, Sun.) (Scholars：孙光民) | Qiang, Wu (Qiang, Wu.)

Indexed by：

EI Scopus

Abstract：

This　paper　presents　an　AVS　to　H.264　Intra　video　transcoder.　AVS　is　the　latest　video　coding　standard　developed　by　China.　The　two　video　coding　standards　will　coexist　in　the　market　in　the　future,　so　it　is　necessary　to　transcode　the　AVS　to　H.264.　The　INTRA16x16　vs.　INTRA4x4　MB　coding　mode　decision　is　made　based　on　the　variance　of　the　ICT　coefficients　of　the　8x8　blocks　in　the　input　AVS　video.　Then,　the　prediction　mode　will　be　decided　using　a　fast　mapping　algorithm.　The　proposed　approach　completely　avoids　the　MB　mode　and　prediction　mode　computations　in　the　H.264　encoding　stage,　the　results　show　that　our　approach　results　in　over　60%　drop　in　encoding　time　with　a　negligible　drop　in　PSNR.　©2007　IEEE.

Keyword：

Conformal mapping Video signal processing Signal encoding Image coding Encoding (symbols) Drops Motion Picture Experts Group standards

Author Community：

[ 1 ] [Minyue, Wang]College of Electronic and Control Engineering, Beijing University of Technology, Beijing, China
[ 2 ] [Guangmin, Sun]College of Electronic and Control Engineering, Beijing University of Technology, Beijing, China
[ 3 ] [Qiang, Wu]College of Electronic and Control Engineering, Beijing University of Technology, Beijing, China