尤其是视频数据,这种要求更高。 因此,研究和开发新型高质量、高效率的面向网络应用的视频压缩编码技术成为目前研究的热点。
So, it has been the hotspot of the present researches to research and develop the new video compression technology with higher quality and efficiency.
针对MPEG - 4的低质量和高质量两种编码质量的视频源,给出了一种混合模型,此模型在多个时间尺度上反映帧大小的变化:场景的变化和同一场景内码流的波动。
Based on the MPEG-4 video traffic of low quality and high quality, a hybrid model is presented to capture the frame size at multiple time scales: the change of scene and fluctuation of bit-rate.
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