The fast DCT algorithm not only can reduce the multiplication number, but also can combine the post-scaling and matrix transpose needed for fast DCT with the quantization and scan processes, so as to speed up the whole MPEG encoder.

  • 本章提出的快速DCT算法不仅减少了所需乘法的次数,而且变换后的后置乘法和矩阵转置过程可与量化和扫描相结合,进一步加速浙江大学博士学位论文整个MPEG编码过程。

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