implicitprior#
Module path: cuqi.implicitprior
Classes
Implicit Constrained GMRF (Gaussian Markov Random Field). |
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Implicit Constrained Gaussian. |
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This class defines (implicit) smoothed priors for which we can apply |
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Implicit Nonnegative GMRF (Gaussian Markov Random Field). |
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Implicit Nonnegative Gaussian. |
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Implicit Regularized GMRF (Gaussian Markov Random Field). |
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Implicit Regularized Gaussian. |
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Implicit Regularized Unbounded Uniform. |
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This class defines an implicit distribution associated with a restoration operator (eg denoiser). They are several works relating restorations operators with priors, see -Laumont et al. https://arxiv.org/abs/2103.04715 -Hu et al. https://openreview.net/pdf?id=x7d1qXEn1e We cannot sample from this distribution, neither compute its logpdf except in some cases. It allows us to apply algorithms such as MYULA and PnPULA. |