noun
two-dimensional fast Fourier transform
Technical term in mathematics and signal processing; refers to the algorithm for computing the 2D discrete Fourier transform efficiently.
画像処理では二次元高速フーリエ変換がよく使われる。
The two-dimensional fast Fourier transform is often used in image processing.
Compound of 二次元 (two-dimensional), 高速 (high-speed), and フーリエ変換 (Fourier transform).