11 citations · 28 across the 9 of their papers we have counts for
10 papers
Torus computed tomography for experimental data
Ella Salo, Alexander Meaney, Olli Koskela +1
Torus computed tomography (Torus CT) reconstructs the Fourier coefficients of an image from X-ray data along closed geodesics on the flat torus. We extend Torus CT to experimental…
Complex Wavelet-Based Sinogram Segmentation for Metal Artifact Reduction in Cone-Beam CT
Siiri Rautio, Alexander Meaney, Salla-Maaria Latva-Äijö +4
Metal objects pose a significant challenge in cone-beam computed tomography, as their strong and energy-dependent X-ray attenuation leads to inconsistent projections and severe str…
Image Reconstruction in Cone Beam Computed Tomography Using Controlled Gradient Sparsity
Alexander Meaney, Mikael A. K. Brix, Miika T. Nieminen +1
Total variation (TV) regularization is a popular reconstruction method for ill-posed imaging problems, and particularly useful for applications with piecewise constant targets. How…
Dynamic computerized tomography using inexact models and motion estimation
Gesa Sarnighausen, Anne Wald, Alexander Meaney
Reconstructing a dynamic object with affine motion in computerized tomography (CT) leads to motion artifacts if the motion is not taken into account. In most cases, the actual moti…
Synergistic Multi-spectral CT Reconstruction with Directional Total Variation
Evelyn Cueva, Alexander Meaney, Samuli Siltanen +1
This work considers synergistic multi-spectral CT reconstruction where information from all available energy channels is combined to improve the reconstruction of each individual c…
Gel phantom data for dynamic X-ray tomography
Tommi Heikkilä, Hanna Help, Alexander Meaney
This is the documentation for dynamic X-ray tomography measurements of a gel phantom diffused with potassium iodide contrast agent. The measured data and additional materials are a…