This is the first in my Fourier series (no pun intended) of videos designed to give a practical knowledge of the DFT to medics and biologists. If you think it is useful please share the link with your students and make it required viewing!
CONTENTS
00:40 Intuition of the Fourier transform (FT)
05:18 Why bother? (Fourier optics and the convolution theorem)
10:42 Inputs to the FT (Review of complex arithmetic)
21:36 Anatomy of the Discrete FT (DFT) equations
30:21 Conclusions