Other types of wavelet transformations

[Otje89]

First of all, I think it's a great approach in image generation and the paper was a very interesting read. I was wondering if you tried or considered other wavelet transformations apart from Haar? And do you think other ones (e.g. Mexican hat or Daubechies) might add additional benefit that could outweight the more expensive calculations?

[rinongal]

Thanks!

We did not attempt any other wavelet transformations, but we certainly think that it can be an interesting approach to take! Actually, one of the things we discussed while working on the project was whether it could be possible to learn a good wavelet function.

The focus of this paper though was to see whether frequency space generation could help tackle the spectral bias and improve high-frequency generation, so we did not delve into alternative wavelets.

[Otje89]

Very interesting approach to learn a good wavelet. That's not something I will be able to look into myself, however, I'll try other wavelet transformations based on Rosinality's repo. I'll keep you informed about the results.