48 citations · 80 across the 16 of their papers we have counts for
17 papers
A Metal Artifact Reduction Scheme For Accurate Iterative Dual-Energy CT Algorithms
Tao Ge, Maria Medrano, Rui Liao +4
CT images have been used to generate radiation therapy treatment plans for more than two decades. Dual-energy CT (DECT) has shown high accuracy in estimating electronic density or…
A Machine-learning Based Initialization for Joint Statistical Iterative Dual-energy CT with Application to Proton Therapy
Tao Ge, Maria Medrano, Rui Liao +3
Dual-energy CT (DECT) has been widely investigated to generate more informative and more accurate images in the past decades. For example, Dual-Energy Alternating Minimization (DEA…
Iterative Algorithms for Joint Scatter and Attenuation Estimation From Broken Ray Transform Data
Michael R. Walker, Joseph A. O'Sullivan
The single-scatter approximation is fundamental in many tomographic imaging problems including x-ray scatter imaging and optical scatter imaging for certain media. In all cases, no…
Proximal Newton Methods for X-Ray Imaging with Non-Smooth Regularization
Tao Ge, Umberto Villa, Ulugbek S. Kamilov +1
Non-smooth regularization is widely used in image reconstruction to eliminate the noise while preserving subtle image structures. In this work, we investigate the use of proximal N…
The Broken Ray Transform: Additional Properties and New Inversion Formula
Michael R. Walker, Joseph A. O'Sullivan
The significance of the broken ray transform (BRT) is due to its occurrence in a number of modalities spanning optical, x-ray, and nuclear imaging. When data are indexed by the sca…
Laplacian Prior Variational Automatic Relevance Determination for Transmission Tomography
Jingwei Lu, David G. Politte, Joseph A. O'Sullivan
In the classic sparsity-driven problems, the fundamental L-1 penalty method has been shown to have good performance in reconstructing signals for a wide range of problems. However…