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- W2949204664 abstract "The Bayesian methods for linear inverse problems is studied using hierarchical Gaussian models. The problems are considered with different discretizations, and we analyze the phenomena which appear when the discretization becomes finer. A hierarchical solution method for signal restoration problems is introduced and studied with arbitrarily fine discretization. We show that the maximum a posteriori estimate converges to a minimizer of the Mumford--Shah functional, up to a subsequence. A new result regarding the existence of a minimizer of the Mumford--Shah functional is proved. Moreover, we study the inverse problem under different assumptions on the asymptotic behavior of the noise as discretization becomes finer. We show that the maximum a posteriori and conditional mean estimates converge under different conditions." @default.
- W2949204664 created "2019-06-27" @default.
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- W2949204664 date "2009-08-24" @default.
- W2949204664 modified "2023-09-27" @default.
- W2949204664 title "Hierarchical models in statistical inverse problems and the Mumford--Shah functional" @default.
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