27 citations
3 papers
physics.app-ph2021★ 8 cited
Contaminant detection using a CZT photon counting detector with TDI image reconstruction
Joanna Nguyen, Devon Richtsmeier, Kris Iniewski +1
Food x-ray inspection systems are designed to detect unwanted physical contaminants in packaged food to maintain a high level of food safety for consumers. Modern day x-ray inspect…
physics.med-ph2020★ 27 cited
Multi-contrast K-edge imaging on a bench-top photon-counting CT system: Acquisition parameter study
Devon Richtsmeier, Chelsea A. S. Dunning, Kris Iniewski +1
Purpose: Photon-counting computed tomography (PCCT) shows promise for medical imaging in regards to material separation and imaging of multiple contrast agents. However, many PCCT…
physics.med-ph2019★ 6 cited
Unsupervised Learning Methods in X-ray Spectral Imaging Material Segmentation
Jericho O'Connell, Kevin Murphy, Spencer Robinson +2
In this work, we have investigated a number of unsupervised learning methods for material segmentation in projection x-ray imaging with a spectral detector. A phantom containing tw…