mrinufft.extras

Additional supports routines.

Functions

cartesian_espirit	ESPIRIT algorithm on Cartesian data.
coil_compression	Coil compression using principal component analysis on k-space data.
espirit	ESPIRIT algorithm on non-Cartesian data.
fft	Compute n-dimensional FFT along the last dims axes.
fse_simulation	Perform simple analytical Fast Spin Echo simulation.
get_brainweb_map	Get M0, T1 and T2 parametric maps from a brainweb crisp segmentation.
get_complex_fieldmap_rad	Create a complex-valued field-map in rad/s.
get_optimizer	Get the optimizer function from its name.
get_orc_factorization	Get the orc_factorization function from its name.
get_smaps	Get the smaps function from its name.
ifft	Compute n-dimensional IFFT along the last dims axes.
loss_l2_AHreg	Compute the norm of the residual in the image domain.
loss_l2_reg	Compute the regularized least squares loss for MRI reconstruction.
low_frequency	Calculate low-frequency sensitivity maps.
make_b0map	Make radial B0 map.
make_t2smap	Make homogeneous T2* map.