bartorch.kernels_to_maps

bartorch.kernels_to_maps()

Coil sensitivities from k-space kernels: the inverse of maps_to_kernels().

Each kernel is zero-padded about index n // 2 to spatial and transformed by the centred unitary inverse FFT.

Parameters:

• kernels (torch.Tensor) – Kernels (..., *size), as maps_to_kernels() returns them.

• spatial (tuple of int) – Spatial shape of the maps; one entry per trailing axis of kernels.

Returns:

Maps (..., *spatial).

Return type:

torch.Tensor