Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.07a
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- Pages.454-457
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- 2000
Video Rate Control Using Activity Based Rate Prediction
- Park, Hyung-Shin (Department of Electronics Engineering, Korea University) ;
- Jung, You-Young (Department of Electronics Engineering, Korea University) ;
- Kim, Young-Ro (Department of Electronics Engineering, Korea University) ;
- Ko, Sung-Jea (Department of Electronics Engineering, Korea University)
- Published : 2000.07.01
Abstract
In this paper, an efficient rate control algorithm based on rate prediction is proposed for maintaining a smooth buffer variation and a small buffer size. The proposed method adjusts the quantization scaling factor by using the predicted bit-rate to meet the target bit budget exactly. Experimental result show that the proposed prediction-based rate control scheme can regulate the bit-rate across scene changes more effectively and achieve better PSNR performance than existing rate control mechanisms such as the MPEG-2 Test Model 5 (TM5) and the Adaptive Scene Analysis (ASA).
Keywords