priors.NonNegative

class bartorch.priors.NonNegative

Bases: Regularizer

Projection onto images whose real and imaginary parts are non-negative.

Each part is clamped at zero separately, which is BART’s S term: an entry -1 + 2i is projected to 2i, not to zero. The term has no weight.

Also has the methods and properties of Regularizer.