TY - GEN
T1 - Low complexity rdo mode decision based on a fast coding-bits estimation model for H.264/AVC
AU - Wang, Qiang
AU - Zhao, Debin
AU - Gao, Wen
AU - Ma, Siwei
PY - 2005
Y1 - 2005
N2 - Rate distortion optimization (RDO) is a very efficient tool for deciding a macroblock's coding mode, which has been adopted by H.264/AVC codec and brings higher coding efficiency. However, due to precise calculation of current macroblock's distortion and coding-bits for each coding modes, RDO-based mode decision involves high computational complexity. In this paper, a simple model for fast estimating the coding-bits of the quantized transform coefficients, which account for the major part of computation when coding a macroblock, is presented. The model only uses nonzero coefficients' magnitude and coordinates information by add operation to fulfill estimation so that computational complexity can be significantly reduced. Experimental results show that with this model computational complexity of RDO-based mode decision in H.264/AVC codec can be reduced 40-60% while coding efficiency has no much of drop.
AB - Rate distortion optimization (RDO) is a very efficient tool for deciding a macroblock's coding mode, which has been adopted by H.264/AVC codec and brings higher coding efficiency. However, due to precise calculation of current macroblock's distortion and coding-bits for each coding modes, RDO-based mode decision involves high computational complexity. In this paper, a simple model for fast estimating the coding-bits of the quantized transform coefficients, which account for the major part of computation when coding a macroblock, is presented. The model only uses nonzero coefficients' magnitude and coordinates information by add operation to fulfill estimation so that computational complexity can be significantly reduced. Experimental results show that with this model computational complexity of RDO-based mode decision in H.264/AVC codec can be reduced 40-60% while coding efficiency has no much of drop.
UR - https://www.scopus.com/pages/publications/48049106388
U2 - 10.1109/ISCAS.2005.1465375
DO - 10.1109/ISCAS.2005.1465375
M3 - 会议稿件
AN - SCOPUS:48049106388
SN - 9780780388345
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 3467
EP - 3470
BT - Proceedings - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2005 IEEE International Symposium on Circuits and Systems, ISCAS 2005
Y2 - 23 May 2005 through 26 May 2005
ER -