First, the 2-d IDCT is transformed into two cascaded 1-d IDCT. Then 1-d IDCT can be implemented by multiplication and addition of matrix according to butterfly computation.
首先将二维idct转换为两个一维idct变换，根据蝶形算法进一步转换为矩阵的乘加运算。
In this paper, we preset the processing elements based on a special butterfly computation and discrible the systolic array implementations for computing DCT, DHT(DWT) and DFT respectively.
文中绐出了两种基于特殊蝶形运算的处理单元和两种计算DCT，DHT（DWT）和DFT的脉动阵列实现。
In this paper, we preset the processing elements based on a special butterfly computation and discrible the systolic array implementations for computing DCT, DHT(DWT) and DFT respectively.
文中绐出了两种基于特殊蝶形运算的处理单元和两种计算DCT，DHT（DWT）和DFT的脉动阵列实现。
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