TY - GEN
T1 - Low-complexity rate control for efficient H.263 to H.264/AVC video transcoding
AU - Ho, Chi Wang
AU - Au, Oscar C.
AU - Chan, S. H.Gary
AU - Yip, Shu Kei
AU - Wong, Hoi Ming
PY - 2006
Y1 - 2006
N2 - Rate control is a complicated problem in the H.264/AVC coding standard, extra computation is usually needed for the existing rate control schemes to estimate the complexity of frames or macroblocks (MBs). However, during transcoding, information from precoded video could be used to simplify the rate control. In this paper, we propose a low-complexity rate control scheme for transcoding from H.263 to H.264/AVC. The relationship between the rate of the precoded video and both the rate and distortion of the transcoded video are studied. By using only the rate information from the precoded video, we introduce a row-layer bit allocation and perform average rate shaping across a row of MBs. Estimation error diffusion is also introduced. The proposed scheme has sufficiently lower computational complexity than other methods as there is no explicit complexity measurement of MBs and complicated parameters updating. Experimental results show the effectiveness of the proposed scheme.
AB - Rate control is a complicated problem in the H.264/AVC coding standard, extra computation is usually needed for the existing rate control schemes to estimate the complexity of frames or macroblocks (MBs). However, during transcoding, information from precoded video could be used to simplify the rate control. In this paper, we propose a low-complexity rate control scheme for transcoding from H.263 to H.264/AVC. The relationship between the rate of the precoded video and both the rate and distortion of the transcoded video are studied. By using only the rate information from the precoded video, we introduce a row-layer bit allocation and perform average rate shaping across a row of MBs. Estimation error diffusion is also introduced. The proposed scheme has sufficiently lower computational complexity than other methods as there is no explicit complexity measurement of MBs and complicated parameters updating. Experimental results show the effectiveness of the proposed scheme.
KW - Video coding
KW - Video signal processing
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000245768500214
UR - https://openalex.org/W1977235509
UR - https://www.scopus.com/pages/publications/39549091611
U2 - 10.1109/ICIP.2006.312536
DO - 10.1109/ICIP.2006.312536
M3 - Conference Paper published in a book
SN - 1424404819
SN - 9781424404810
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 853
EP - 856
BT - 2006 IEEE International Conference on Image Processing, ICIP 2006 - Proceedings
T2 - 2006 IEEE International Conference on Image Processing, ICIP 2006
Y2 - 8 October 2006 through 11 October 2006
ER -