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Communication Dans Un Congrès Année : 2012

Image reconstruction with multiresolution edge-continuation and non-quadratic data fidelity

Résumé

The standard approach to image reconstruction, which consists in minimizing a cost function combining data- fidelity with edge-preserving regularization, tends to pro- duce noisy object boundaries and to create a staircase ef- fect. We propose to incorporate the smoothness of the edge field via an additional penalty term defined in a mul- tiresolution domain. We provide an efficient half-quadratic algorithm to solve the resulting optimization problem, in- cluding the case when the data-fidelity is non-quadratic and the cost function non-convex.
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Dates et versions

hal-00829703 , version 1 (03-06-2013)

Identifiants

  • HAL Id : hal-00829703 , version 1

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M. Robini, J.-P. Viverge. Image reconstruction with multiresolution edge-continuation and non-quadratic data fidelity. 6th SIAM conf. on Imaging Science, May 2012, Philadelphia, United States. ⟨hal-00829703⟩
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