Deep Learning, Artificial Intelligence, Image Classification, Fourier Transform, Fft.
(2) there exist efficient algorithms for computing the DFT, such as Fast Fourier Transform (FFT). 1.2. 2D DFT The DFT described above can be extended to 2D signals. where the 2D DFT can be viewed as performing 1D DFT on the two dimensions alternatively. 2. Global Filter Network (GFNet) The overall