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A simple example to showcase autodiff #104
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Beware, there is also autodiff for the image/k-space data (the one that is only currently supported) This could also be show cased. |
I really seemed to have clicked open issue too soon. I had written so much more xD. Lemme update |
@AsmaTANABEN , can you have a look at the notebook shared in mattermost and see if we can get this on mri-nufft? |
Reopening as it got closed by mistake :P |
I added that we could have additional support for learning a sampling pattern in 2D with straight line readouts. Perhaps we can do it while supporting stackNUFFT on torch? @paquiteau is this possible? Can we pass the backprop gradients through the stacked NUFFT from the internal plane NUFFT? |
On second thoughts, we would need 176 2D NUFFT then |
after rethinking about it, stacked nufft does not have autodiff wrt to trajectory. It does support the autodiff wrt to data however. |
We could have possibly the following examples:
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