Python Sparse data Analysis Package external MRI plugin.

Note

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

class mri.optimizers.utils.reweight.mReweight(weights, linear_op, thresh_factor=1)[source]¶

Ming reweighting.

This class implements the reweighting scheme described in Ming2017.

Parameters

weights : ndarray

Array of weights

linear_op : pysap.numeric.linear.Wavelet

A linear operator.

thresh_factor : float, default 1

Threshold factor: sigma threshold.

reweight(x_new)[source]¶

Updat the weights.