Browsing by Author "Chou, Ting-Li"

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Scene Change Aware Intra-Frame Rate Control for H.264/AVC
(2010-12-01)
Tsai, Wen-Jiin
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Chou, Ting-Li
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資訊工程學系
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Department of Computer Science
Most of rate-control research focuses on inter-coded frames, instead of intra-coded frames which are more possible to cause the problem of buffer overflow. This letter presents a rate control algorithm for intra-frame coding. We propose a Taylor-series-based rate-QS model and a scene-change aware rate-QS model to determine quantization parameters for general intra-frames and scene-change frames, respectively. Simulation results show that compared to competed approaches, the proposed method achieves better and stable quality with low buffer fullness.