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mmuckley / torchkbnufft

A high-level, easy-to-deploy non-uniform Fast Fourier Transform in PyTorch.
https://torchkbnufft.readthedocs.io/
MIT License
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Gradients w.r.t. coordinates in ktraj #95

Closed tobitk closed 3 months ago

tobitk commented 3 months ago

Hi, thanks for the great package! Is it right that both nufft and adjoint nufft are only differentiable w.r.t. the input image/k-space but not w.r.t. the coordinates in the input trajectory? Is it feasible to add gradients w.r.t. to the coordinates as well?

Best, Tobit