The algorithms based on the Bregman iterative regularization are known for efficiently solving convex constraint optimization problems. In this paper, we introduce a second order derivative scheme for the class of Bregman algorithms. Its properties of convergence and stability are investigated by means of numerical evidences. Moreover, we apply the proposed scheme to an isotropic Total Variation (TV) problem arising out of the Magnetic Resonance Image (MRI) denoising. Experimental results confirm that our algorithm has good performance in terms of denoising quality, effectiveness and robustness.
|Titolo:||A second order derivative scheme based on bregman algorithm class|
|Autori interni:||CAMPAGNA, ROSANNA|
|Data di pubblicazione:||2016|
|Rivista:||AIP CONFERENCE PROCEEDINGS|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|