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# The Discrete Fourier Transform, But With Triangles - graeme phillips posting
Here’s something I’ve been wondering about lately: what happens if you replace all the sine waves in the fourier transfo…
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The last image in the Summary Plot (as shown below) plots Voxels vs. Time. This is indeed a very helpful plot to check.
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Hello,
I'm trying to study more about the origins of the nonuniform FFT.
It looks like the most recent research is from https://finufft.readthedocs.io/en/latest/refs.html, which derives from Green…
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GitHub supports [CFF files](https://citation-file-format.github.io/) which facilitate citing software: you can download BibTex file right from the repository page; and in general it seems to become th…
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## 🚀 Feature
An FFT backend for `kornia.filters.filter2d`.
## Motivation
`kornia.filters.filter2d` is very slow for large kernels as it currently only performs convolutions in the spatial domai…
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Hi,
I am doing a PhD in nonlinear optics in which we encounter several semilinear parabolic PDE like the Nonlinear Schrödinger Equation (NLSE) and its variant.
Most of these PDEs are semilinear …
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"Then the slices were transformed to k-space using a three dimensional Fourier transform. A four-fold pseudo-random under-sampling scheme was applied to get the under-sampled k-space. Finally, the thr…
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Dear all,
We have been combining TRIQS with OpenMP for a while in the TPRF project. One issue that we face is that the fourier transforms between imaginary time and Matsubara frequency and between …
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_From @SergeStinckwich on June 5, 2015 9:59_
Try to extract and run the FFT (Fast Fourier Transform) and FWT (Fast Wavelet Transform) classes from Squeak 4.5 image as a first draft.
http://magaloma.…
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In some imaging modalities, like MRI and phase contrast tomography, the forward problem involves taking the Fourier transform of a function in 2D/3D that is not sampled on a grid. The current Fourier …