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math.OC2023
Variational Poisson Denoising via Augmented Lagrangian Methods
Christian Kanzow, Fabius Krämer, Patrick Mehlitz +2
In this paper, we denoise a given noisy image by minimizing a smoothness promoting function over a set of local similarity measures which compare the mean of the given image and so…
math.OC2023
Convergence Analysis of the Proximal Gradient Method in the Presence of the Kurdyka-Łojasiewicz Property without Global Lipschitz Assumptions
Xiaoxi Jia, Christian Kanzow, Patrick Mehlitz
We consider a composite optimization problem where the sum of a continuously differentiable and a merely lower semicontinuous function has to be minimized. The proximal gradient al…