Abstract
For real H.264/AVC codec, the bit allocation in rate control is crucial to coding efficiency. Meanwhile, the rate-distortion-optimization (RDO) based mode-decision technique also affects performance considerably. This paper presents a R-D optimized multi-stage rate control scheme where both bit allocation and the Lagrange multiplier (λ MODE) selection are considered. At the first stage, frame layer bit allocation is executed by analyzing frame complexity which is represented by mean-absolute-difference (MAD). Secondly, in order to a select suitable mode to generate reasonable bits, λ MODE is further adjusted by using coded and remaining bits information. At the last stage, bits are allocated on macroblock (MB) layer and the computed quantization parameter (QP) is further adjusted. Simulation results verify the performance of the proposed algorithm. Compared with the recommended rate control in H.264/AVC reference software, a gain up to 0.89dB in PSNR is achieved, and the subjective coding quality is also improved.
| Original language | English |
|---|---|
| Title of host publication | European Signal Processing Conference |
| Pages | 1809-1813 |
| Number of pages | 5 |
| Publication status | Published - 2009 |
| Event | 17th European Signal Processing Conference, EUSIPCO 2009 - Glasgow, United Kingdom Duration: 2009 Aug 24 → 2009 Aug 28 |
Other
| Other | 17th European Signal Processing Conference, EUSIPCO 2009 |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 09/8/24 → 09/8/28 |
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ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering
Cite this
Rate-distortion optimized multi-stage rate control algorithm for H.264/AVC video coding. / Wu, Shuijiong; Huang, Yiqing; Liu, Qin; Ikenaga, Takeshi.
European Signal Processing Conference. 2009. p. 1809-1813.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Rate-distortion optimized multi-stage rate control algorithm for H.264/AVC video coding
AU - Wu, Shuijiong
AU - Huang, Yiqing
AU - Liu, Qin
AU - Ikenaga, Takeshi
PY - 2009
Y1 - 2009
N2 - For real H.264/AVC codec, the bit allocation in rate control is crucial to coding efficiency. Meanwhile, the rate-distortion-optimization (RDO) based mode-decision technique also affects performance considerably. This paper presents a R-D optimized multi-stage rate control scheme where both bit allocation and the Lagrange multiplier (λ MODE) selection are considered. At the first stage, frame layer bit allocation is executed by analyzing frame complexity which is represented by mean-absolute-difference (MAD). Secondly, in order to a select suitable mode to generate reasonable bits, λ MODE is further adjusted by using coded and remaining bits information. At the last stage, bits are allocated on macroblock (MB) layer and the computed quantization parameter (QP) is further adjusted. Simulation results verify the performance of the proposed algorithm. Compared with the recommended rate control in H.264/AVC reference software, a gain up to 0.89dB in PSNR is achieved, and the subjective coding quality is also improved.
AB - For real H.264/AVC codec, the bit allocation in rate control is crucial to coding efficiency. Meanwhile, the rate-distortion-optimization (RDO) based mode-decision technique also affects performance considerably. This paper presents a R-D optimized multi-stage rate control scheme where both bit allocation and the Lagrange multiplier (λ MODE) selection are considered. At the first stage, frame layer bit allocation is executed by analyzing frame complexity which is represented by mean-absolute-difference (MAD). Secondly, in order to a select suitable mode to generate reasonable bits, λ MODE is further adjusted by using coded and remaining bits information. At the last stage, bits are allocated on macroblock (MB) layer and the computed quantization parameter (QP) is further adjusted. Simulation results verify the performance of the proposed algorithm. Compared with the recommended rate control in H.264/AVC reference software, a gain up to 0.89dB in PSNR is achieved, and the subjective coding quality is also improved.
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M3 - Conference contribution
SP - 1809
EP - 1813
BT - European Signal Processing Conference
ER -