Decorrelation can make features easier to analyze.
去相关处理可以让特征更容易分析。
In image compression, transforms like the DCT are used for decorrelation so that most of the energy concentrates in a few coefficients, improving coding efficiency.
在图像压缩中,像 DCT 这样的变换用于去相关,使能量集中到少数系数上,从而提高编码效率。