Rate-distortion optimization of rate control for h.264 with adaptive initial quantization parameter determination

Hanli WANG; Sam KWONG

doi:10.1109/TCSVT.2007.913757

Rate-distortion optimization of rate control for h.264 with adaptive initial quantization parameter determination

Hanli WANG, Sam KWONG

Research output: Journal Publications › Journal Article (refereed) › peer-review

119 Citations (Scopus)

Abstract

A rate-distortion (R-D) optimization rate control (RC) algorithm with adaptive initialization is presented for H.264. First, a linear distortion-quantization (D-Q) model is introduced and thus a close-form solution is developed to derive optimal quantization parameters (Qp)for encoding each macroblock. Then we exploit to determine the initial Qp efficiently and adaptively according to the content of video sequences. The experimental results demonstrate that the proposed algorithm can achieve better R-D performance than that of other two RC algorithms including the algorithm JVT-G012 which is the current recommended RC scheme implemented in the H.264 reference software JM9.5. © 2006 IEEE.

Original language	English
Pages (from-to)	140-144
Journal	IEEE Transactions on Circuits and Systems for Video Technology
Volume	18
Issue number	1
DOIs	https://doi.org/10.1109/TCSVT.2007.913757
Publication status	Published - Jan 2008
Externally published	Yes

Funding

This work was supported in part by City University of Hong Kong Strategic under Grant 7002023.

Keywords

H.264
Initial quantization parameter
Rate control
Rate-distortion optimization

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10.1109/TCSVT.2007.913757

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abstract = "A rate-distortion (R-D) optimization rate control (RC) algorithm with adaptive initialization is presented for H.264. First, a linear distortion-quantization (D-Q) model is introduced and thus a close-form solution is developed to derive optimal quantization parameters (Qp)for encoding each macroblock. Then we exploit to determine the initial Qp efficiently and adaptively according to the content of video sequences. The experimental results demonstrate that the proposed algorithm can achieve better R-D performance than that of other two RC algorithms including the algorithm JVT-G012 which is the current recommended RC scheme implemented in the H.264 reference software JM9.5. {\textcopyright} 2006 IEEE.",

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AB - A rate-distortion (R-D) optimization rate control (RC) algorithm with adaptive initialization is presented for H.264. First, a linear distortion-quantization (D-Q) model is introduced and thus a close-form solution is developed to derive optimal quantization parameters (Qp)for encoding each macroblock. Then we exploit to determine the initial Qp efficiently and adaptively according to the content of video sequences. The experimental results demonstrate that the proposed algorithm can achieve better R-D performance than that of other two RC algorithms including the algorithm JVT-G012 which is the current recommended RC scheme implemented in the H.264 reference software JM9.5. © 2006 IEEE.

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KW - Initial quantization parameter

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Rate-distortion optimization of rate control for h.264 with adaptive initial quantization parameter determination

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Keywords

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