autoarray.inversion.regularization.Constant

class autoarray.inversion.regularization.Constant(coefficient: float = 1.0)

__init__(coefficient: float = 1.0)

A constant regularization scheme (regularization is described in the Regularization class above) which uses a single value to apply smoothing on the solution of an Inversion.

For this regularization scheme, there is only 1 regularization coefficient that is applied to all neighboring pixels. This means that the matrix B only needs to regularize pixels in one direction (e.g. pixel 0 regularizes pixel 1, but NOT visa versa). For example:

B = [-1, 1] [0->1]

[0, -1] 1 does not regularization with 0

A small numerical value of 1.0e-8 is added to all elements in constant regularization matrix, to ensure that it is positive definite.

Parameters

coefficient – The regularization coefficient which controls the degree of smooth of the inversion reconstruction.

Methods

__init__([coefficient])	A constant regularization scheme (regularization is described in the Regularization class above) which uses a single value to apply smoothing on the solution of an Inversion.
regularization_matrix_from(mapper)
regularization_weights_from(mapper)