Title :
Fast motion estimation and mode decision for H.264 reverse transcoding
Author :
Fu, C.-H. ; Chan, Y.-L. ; Siu, W.-C.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon
Abstract :
A fast reverse motion estimation algorithm with smart mode decision for H.264 reverse transcoding is proposed. The best mode for the backward transcoded macroblock is obtained by analysing the motion vectors and modes decoded from the forward bitstream. A significant reduction in the transcoding complexity with negligible impact on rate-distortion performance has been achieved
Keywords :
computational complexity; motion estimation; transcoding; video coding; H.264 reverse transcoding; backward transcoding; motion estimation; reduced transcoding complexity; smart mode decision;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20062274
