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math.NA2018
TV-regularized CT Reconstruction and Metal Artifact Reduction Using Inequality Constraints with Preconditioning
Clemens Schiffer
Total variation(TV) regularization is applied to X-Ray computed tomography(CT) in an effort to reduce metal artifacts. Tikhonov regularization with data fidelity term and tot…
math.NA2014★ 3 cited
Sinogram constrained TV-minimization for metal artifact reduction in CT
Clemens Schiffer, Kristian Bredies
A new method for reducing metal artifacts in X-ray computed tomography (CT) images is presented. It bases on the solution of a convex optimization problem with inequality constrain…