discrete cosine transform

基本解释

A fast algorithm of discrete cosine transform(DCT)to implementelectrocardiogram(ECG)data compression using"Variance criterion" is discussed.
用离散余弦变换（DCT）的一种快速算法按“方差准则”实现心电图（ECG）数据压缩。
In this paper, a new fast algorithm to calculate discrete cosine transform(DCT) with arbitrary length by means of the butterfly structure is presented.
本文提出离散余弦变换（DCT）的一种新的快速算法，其特点是变换长度任意，而且采用蝶形结构。
Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (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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