The present paper presents a new method for constructing optimal quantisation tables . the method produces optimal rate - distortion performance in a fixed block size dct 摘要提出一种构造择优量化表的新方法。在一个固定块尺寸的离散馀弦变换( dct )中，该方法可产生优化的率失真特性。
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The discrete cosine transform can be implemented in a computationally efficient manner with stage i , the input signal is transformed into a corresponding signal constituted uncorrelated variables 第一级滑动离散馀弦变换能够以高计算效率实现，将输入信号变换为一个由互不相关变量组成的对应信号。
