https://insightincmiami.org/data-visualization-using-the-fourier-transform/ (this one also contains some nice practical applications)
LinyueSong
I have done some research in computer vision backdoor door attacks. Without disclosing it too much, I'm going to briefly describe what I found out. It turned out that the durability of backdoors has a strong relationship with where the trigger is injected in the frequency domain, especially if you want to adversarial perturbations as your backdoors.
AlbertScribblenaut
In addition to the links provided by @ananthmrao, 3Blue1Brown provides multiple videos discussing the Fourier Transform. An introduction can be found here.
For those interested in learning more about the Fourier Transforms and visualizing them better, I found the following links helpful:
https://towardsdatascience.com/fourier-transforms-animated-visualization-5bdb43b4b3d2
https://insightincmiami.org/data-visualization-using-the-fourier-transform/ (this one also contains some nice practical applications)
I have done some research in computer vision backdoor door attacks. Without disclosing it too much, I'm going to briefly describe what I found out. It turned out that the durability of backdoors has a strong relationship with where the trigger is injected in the frequency domain, especially if you want to adversarial perturbations as your backdoors.
In addition to the links provided by @ananthmrao, 3Blue1Brown provides multiple videos discussing the Fourier Transform. An introduction can be found here.