3 papers
eess.IV2020
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…
cs.RO2019
Local Parametric Surface Approximation With Automatic Order Selection From Position Data
Michael R. Walker
Acquiring an anatomical map from position data is important for medical applications where catheters interact with soft tissues. To improve autonomous navigation in these settings,…
eess.SP2019
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…