Identification and restoration of images with symmetric noncausal blurs
- 1 April 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems
- Vol. 35 (4) , 385-393
- https://doi.org/10.1109/31.1753
Abstract
In this paper, a parallel identification and restoration proce- dure is described for images with symmetric, noncausal blurs. It is shown that the identification problem can be specified as a parallel set of one-dimensional complex autoregressive moving-average (ARMA) identifi- cation problems. By expressing the ARMA models as equivalent infinite- order autoregressive (AR) models, an entirely linear estimation procedure can be followed. It will be shown that under the condition of blur symmetry, it is possible to reconstruct a useful noncausal set of MA (blur) parameters from the identified minimum-phase set. The thus identified image model and blur parameters are supplied to a parallel Kalman restoration filter. Several identification and restoration results on image data are given as examples.Keywords
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