Name
Abstract | ||
|---|---|---|
The ρ-domain rate control algorithm is very simple and effective. There is only one parameter, θ, used in the model. θ reflects the relationship between the rate and the quantization step. Accurately estimating the θ value of the I (intra) frame is important for an efficient ρ-domain rate control algorithm because the I frame will influence the remaining frames in the GOP (group of pictures) greatly. In this paper, we propose to estimate the θ value based on the energy of the frame. The energy difference of the I frames is used to predict the new θ. A linear relationship between θ and the energy is deduced. Experimental results show that using the energy can more accurately predict the θ value of I frame than only using the θ value of the previous P (predict) frame. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/PCS.2009.5167404 | PCS |
Keywords | Field | DocType |
linear relationship,quantization step,domain rate control algorithm,energy difference,previous p,intra frame,remaining frame,i frame,tin,layout,entropy coding,prediction algorithms,helium,mathematical model,robustness,quantization | Control algorithm,Group of pictures,Theoretical computer science,Prediction algorithms,Intra-frame,Quantization (signal processing),Mathematics | Conference |
Citations | PageRank | References |
0 | 0.34 | 7 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Zhihang Wang | 1 | 1 | 1.70 |
| Dong Shengfu | 2 | 8 | 2.92 |
| Long Xu | 3 | 57 | 4.50 |
| Wen Gao | 4 | 11374 | 741.77 |
| Qingming Huang | 5 | 3919 | 267.71 |