Title :
Fast block-size partitioning using empirical rate-distortion models for MPEG-2 to H.264/AVC transcoding
Author :
Tang, Qiang ; Nasiopoulos, Panos ; Ward, Rabab
Author_Institution :
Univ. of British Columbia, Vancouver, BC, Canada
fDate :
May 30 2010-June 2 2010
Abstract :
We present an efficient H.264/AVC block-size partitioning prediction method, which is based on our proposed empirical rate and distortion models. Compared to other state-of-the-art transcoding methods, and for the same rate-distortion performance, our proposed algorithm requires the least computational complexity, reaching a 73% reduction in variable block-size motion estimation for SDTV sequences, and 71% reduction for CIF sequences.
Keywords :
block codes; data compression; motion estimation; transcoding; video coding; H.264/AVC transcoding; MPEG-2; SDTV sequences; block size partitioning; block-size motion estimation; empirical rate distortion models; Automatic voltage control; Computational complexity; Encoding; Lagrangian functions; Motion estimation; Partitioning algorithms; Predictive models; Rate-distortion; Transcoding; Video compression;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5536976
