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Conventional reconstruction algorithms for Limited-angle computed tomography introduce blurring and streak artifacts. We propose a reconstruction model that incorporates two regularization terms which play the role of edge-preserving diffusion and smoothing along the x-direction and y-direction respectively. Our model is based on the observation that through the image edges are blurred along the y-direction, they are visible along the x-direction, which is a global view of the theoretical results given by Quinto et al.
This presentation is part of Minisymposium “MS15 - Nonlinear Diffusion: Models, Extensions and Algorithms (2 parts)”
organized by: Ke Chen (University of Liverpool) , Joachim Weickert (Saarland University) , Xue-Cheng Tai (Hong Kong Baptist University) .