编码器比较一次又一次的证明了，没有自适应量化的编码器根本无法竞争。
Encoder comparisons have showed over and over that encoders without adaptive quantization simply cannot compete.
自适应量化的基本思想是：在FDCT过程中加入自适应处理，生成新的量化表代替固定量化表，再将其数据与FDCT处理的数据一起传送到熵编码器。
The basic rule of the adaptive quantization is: to add adaptive processing to FDCT and produce new quantization form instead of the fixed quantization form.
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