Adaptive Graph-based Total Variation for Tomographic Reconstructions

no code implementations • 4 Oct 2016 • Faisal Mahmood, Nauman Shahid, Ulf Skoglund, Pierre Vandergheynst

Sparsity exploiting image reconstruction (SER) methods have been extensively used with Total Variation (TV) regularization for tomographic reconstructions.

Image Reconstruction Tomographic Reconstructions

2D Discrete Fourier Transform with Simultaneous Edge Artifact Removal for Real-Time Applications

no code implementations • 16 Mar 2016 • Faisal Mahmood, Märt Toots, Lars-Göran Öfverstedt, Ulf Skoglund

These artifacts can have critical consequences if the DFTs are being used for further processing.

Graph Based Sinogram Denoising for Tomographic Reconstructions

no code implementations • 14 Mar 2016 • Faisal Mahmood, Nauman Shahid, Pierre Vandergheynst, Ulf Skoglund

This makes the sinogram an ideal candidate for graph based denoising since it generally has a piecewise smooth structure.

Denoising Tomographic Reconstructions