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- W2021107266 abstract "A method of video coding rate control by joint picture-layer and macroblock-layer is proposed in this paper. In picturelayer, the number of bits in each frame is pre-allocated on the whole, and a reference quantization parameter is determined. Then, according to rate-distortion principle, when each frame is encoded, the optimized quantization parameter is selected for intra-frame different macroblocks with the minimal distortion. The result of simulation shows that the proposed method of video coding rate control can reduce or avoid buffer from overflow or underflow efficiently, stabilify the output bit-steam and improve the peak signal-noise-ratio (PSNR) of re-constructed video signal." @default.
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- W2021107266 date "2007-01-26" @default.
- W2021107266 modified "2023-09-22" @default.
- W2021107266 title "The optimized method of video coding rate control based on rate distortion" @default.
- W2021107266 doi "https://doi.org/10.1117/12.725217" @default.
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