The improved AFT algorithms for even and odd functions can also be used for computing discretecosinetransform (DCT) and discrete sine transform (DST), respectively.
Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discretecosinetransform (DCT) in ray-space data compression.
在光线空间的数据压缩中,计算了数据的相关系数,采用二维离散余弦变换(DCT)进行了变换域分析。
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In this paper, a new fast algorithm to calculate discretecosinetransform (DCT) with arbitrary length by means of the butterfly structure is presented.