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  • Last update: 5 years ago
  • Total downloads: 101
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: FranГ§ois Orieux
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scripts default iconUnsupervised Wiener-Hunt deconvolution (Scripts) Publisher's description

udeconv - Unsupervised Wiener-Hunt deconvolution

[xEap, gnChain, gxChain] = udeconv(data, ir, reg, criterion, burnin, maxIter)

udeconv - Unsupervised Wiener-Hunt deconvolution

[xEap, gnChain, gxChain] = udeconv(data, ir, reg, criterion, burnin, maxIter)

return the deconvolution of 'data' by 'ir' with the 'reg' regularization operator. The algorithm is a stochastic iterative process (Gibbs sampler) that allow automatic tuning of regularization parameter, see reference below. There is no specific constraints on the number of dimension.

The call [xEap, gnChain, gxChain, xStd] = udeconv(...) allow to compute the diagonal of the covariance matrix around xEap with the cost of an fft at each iteration.

If you use this work, please add a citation of the reference below.

Compatible with octave.


data -- the data

ir -- the impulsionnal response

reg -- the regularisation operator (a laplacian for example)

criterion -- if the difference between two successive estimate is less than this value, stop the algorithm.

burnin -- number of iteration to remove at the beginning of the chain to compute the mean of the image (typicaly 30).

maxIter -- maximum number of iteration (typicaly 200).


xEap -- the estimated result

xStd -- is the standart deviation around the estimate

gnChain, gxChain -- the MCMC chain of the regularisation parameters. See reference below.


[xEap gnChain, gxChain] = udeconv(data, ir, hpFilter, criterion, burnin, maxIter)

[xEap gnChain, gxChain, xStd] = udeconv(...)


François Orieux, Jean-François Giovannelli, and Thomas Rodet, "Bayesian estimation of regularization and point spread function parameters for Wiener-Hunt deconvolution," J. Opt. Soc. Am. A 27, 1593-1607 (2010)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-7-1593 ://http://www.opticsinfobase.org/josaa...osaa-27-7-1593

System Requirements:

MATLAB 7.6 (R2008a)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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