RawSigpyNUFFT

class mrinufft.operators.interfaces.sigpy.RawSigpyNUFFT(samples, shape, oversamp=1.25, width=4, eps=None, upsampfac=None, n_trans=1, **kwargs)

Bases: object

Raw interface to SigPy output /= width**ndim NUFFT.

Parameters:

• samples (np.ndarray) – the kspace sample locations in the Fourier domain, normalized between -0.5 and 0.5

• shape (tuple of int) – shape of the image

• oversamp (float default 1.25) – oversampling factor

• width (int default 4) – interpolation kernel width (usually 3 to 7)

• upsampfac (float, default 1.25) – Same as oversamp

• eps (float, default 1e-4) – Other way of specifiying width.

Methods

__init__
adj_op	Adjoint Operator.
op	Forward Operator.

op(coeffs_data, grid_data)

Forward Operator.

adj_op(coeffs_data, grid_data)

Adjoint Operator.