DocumentCode :
989291
Title :
Unsupervised Bayesian Convex Deconvolution Based on a Field With an Explicit Partition Function
Author :
Giovannelli, Jean-François
Author_Institution :
CNRS-Supelec-UPS, Gif-sur-Yvette
Volume :
17
Issue :
1
fYear :
2008
Firstpage :
16
Lastpage :
26
Abstract :
This paper proposes a non-Gaussian Markov field with a special feature: an explicit partition function. To the best of our knowledge, this is an original contribution. Moreover, the explicit expression of the partition function enables the development of an unsupervised edge-preserving convex deconvolution method. The method is fully Bayesian, and produces an estimate in the sense of the posterior mean, numerically calculated by means of a Monte-Carlo Markov chain technique. The approach is particularly effective and the computational practicability of the method is shown on a simple simulated example.
Keywords :
Bayes methods; Gaussian processes; Markov processes; Monte Carlo methods; deconvolution; image segmentation; Monte-Carlo Markov chain technique; edge-preserving convex deconvolution method; explicit partition function; nonGaussian Markov field; unsupervised Bayesian convex deconvolution; Bayesian methods; Computational efficiency; Computational modeling; Data processing; Deconvolution; Fast Fourier transforms; Helium; Sampling methods; Simulated annealing; Statistics; Bayesian statistics; Monte-Carlo Markov chain; convex potentials; deconvolution; hyperparameters estimation; partition function; regularization; unsupervised estimation; Algorithms; Artificial Intelligence; Bayes Theorem; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity;
fLanguage :
English
Journal_Title :
Image Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1057-7149
Type :
jour
DOI :
10.1109/TIP.2007.911819
Filename :
4389814
Link To Document :
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