Python Sparse data Analysis Package external MRI plugin.

Note

This page is a reference documentation. It only explains the function signature, and not how to use it. Please refer to the gallery for the big picture.

mri.operators.fourier.utils.normalize_frequency_locations(samples, Kmax=None)[source]¶

This function normalizes the sample locations between [-0.5; 0.5[ for the non-Cartesian case.

Parameters

samples : np.ndarray

Unnormalized samples

Kmax : int, float, array-like or None

Maximum Frequency of the samples locations is supposed to be equal to base Resolution / (2* Field of View)

Returns

normalized_samples : np.ndarray

Same shape as the parameters but with values between [-0.5; 0.5[