A Coupled Mrf Model for Sar Image Restoration and Edge-Extraction
Fabio Arduini, Carlo Dambra, Carlo S. Regazzoni · 2005
A coupled stochastic image model for restoration of Synthetic Aperture Radar (SAR) images affected by speckle and for extraction of related intensity discontinuities is presented. The two problems are ill-posed [2], as defined by Hadamard [7], and require the use of regularization methods. It is shown that the coupled Gibbs-Markov Random Fields technique for piecewise constant image reconstruction [10] can be utilized by means of the SAR-image observation model proposed in [5]. Simulation results on test images are reported.