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- W4312297589 abstract "Blind deconvolution (BD) is the recovery of a scene of interest convolved with an unknown impulse response function. Within a Bayesian context, prior distributions are assigned to both unknowns to regularize the BD problem. A common approach is to use Gaussian priors. Nonetheless, the latter do not alleviate the so-called scale ambiguity that prevents from efficiently sampling the joint posterior distribution and building appropriate estimators. In this paper, we instead use a Von–Mises prior that removes scale ambiguity and we focus on the design of a sampling scheme of the joint posterior. The latter may exhibit multiple modes. We propose accordingly a reversible jump Markov chain Monte Carlo method that prevents samples from lingering in local modes. Compared to state-of-the-art techniques, the algorithm shows an improved within- and between-mode mixing property with synthetic data. This paves the way for the design of Bayesian estimators naturally deprived of scale ambiguity." @default.
- W4312297589 created "2023-01-04" @default.
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- W4312297589 date "2022-01-01" @default.
- W4312297589 modified "2023-09-25" @default.
- W4312297589 title "A Reversible Jump MCMC in Bayesian Blind Deconvolution With a Spherical Prior" @default.
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- W4312297589 doi "https://doi.org/10.1109/lsp.2022.3223026" @default.
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