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- W438650982 abstract "We treat an image restoration problem throughout a Poisson noise channel. The Poisson randomness might be appeared in observation of low contrast object, and its variable takes discrete and positive value. The Poisson noise observation is often hard to treat in a theoretical analysis. In our formulation, we interpret the Poisson noise channel observation as a Bernoulli process, and apply a latent variable method to transform the observation as a Gaussian process with single latent variable. We formulate the image restoration problem as a Bayesian approach, and introduce a Gaussian Markov random field as its prior. The latent parameters and Poisson parameters are treated as hyper-parameters, and we infer them in the expectation maximization framework." @default.
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- W438650982 date "2013-07-15" @default.
- W438650982 modified "2023-09-27" @default.
- W438650982 title "Poisson Observed Image Restoration using a Latent Variational Approximation with Gaussian MRF" @default.
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