Lifting matrixes is the base of integers transforms, so structuring lifting matrixes is the emphasis in FFT and DCT integers transform.

整数到整数变换的基础是提升矩阵，所以fft、DCT整数变换的重点就是构造提升矩阵。

youdao

Lifting matrixes is the base of integers transforms, so structuring lifting matrixes is the emphasis in FFT and DCT integers transform.

整数到整数变换的基础是提升矩阵，所以fft、DCT整数变换的重点就是构造提升矩阵。

youdao