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提出了一种基于DCT系数的自适应视频编码码率控制策略,该策略能有效地减少、避免缓存器出现上、下溢的情况,使输出码率趋于稳定。并且在视频图像质量没有明显失真的前提下,改进了计算复杂度,提高了重建图像的信噪比。
A DCT coefficient-based adaptive video coding rate control strategy is proposed. This strategy can effectively reduce and avoid buffer overflow and underflow, stabilizing the output bitrate. And under the premise of no significant distortion of the video image quality, the computational complexity is improved and the signal-to-noise ratio of the reconstructed image is improved.