English

Sinogram constrained TV-minimization for metal artifact reduction in CT

Numerical Analysis 2014-04-30 v1 Computer Vision and Pattern Recognition Medical Physics

Abstract

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 constraints on the sinogram, and total variation regularization for the reconstructed image. The Chambolle-Pock algorithm is used to numerically solve the discretized version of the optimization problem. As proof of concept we present and discuss numerical results for synthetic data.

Keywords

Cite

@article{arxiv.1404.6691,
  title  = {Sinogram constrained TV-minimization for metal artifact reduction in CT},
  author = {Clemens Schiffer and Kristian Bredies},
  journal= {arXiv preprint arXiv:1404.6691},
  year   = {2014}
}

Comments

Part of the OAGM 2014 proceedings (arXiv:1404.3538)

R2 v1 2026-06-22T03:59:26.249Z