Nonlinear total variation based noise removal algorithms
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An Algorithm for Total Variation Minimization and Applications
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Split Bregman Algorithm, Douglas-Rachford Splitting and Frame Shrinkage
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Bregman operator splitting with variable stepsize for total variation image reconstruction
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A fixed-point augmented Lagrangian method for total variation minimization problems
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A Framework for Moving Least Squares Method with Total Variation Minimizing Regularization
Journal of Mathematical Imaging and Vision
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In this paper, we propose a unified primal-dual algorithm framework for two classes of problems that arise from various signal and image processing applications. We also show the connections to existing methods, in particular Bregman iteration (Osher et al., Multiscale Model. Simul. 4(2):460---489, 2005) based methods, such as linearized Bregman (Osher et al., Commun. Math. Sci. 8(1):93---111, 2010; Cai et al., SIAM J. Imag. Sci. 2(1):226---252, 2009, CAM Report 09-28, UCLA, March 2009; Yin, CAAM Report, Rice University, 2009) and split Bregman (Goldstein and Osher, SIAM J. Imag. Sci., 2, 2009). The convergence of the general algorithm framework is proved under mild assumptions. The applications to 驴 1 basis pursuit, TV驴L 2 minimization and matrix completion are demonstrated. Finally, the numerical examples show the algorithms proposed are easy to implement, efficient, stable and flexible enough to cover a wide variety of applications.