Samuel Richard

Ph.D. student

Medical Biophysics

University of Toronto

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Research
Dual-energy x-ray imaging

Flat-panel detectors

Cascaded systems analysis

Model observers

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Publications

2007                                                  

 S. Richard and J. H. Siewerdsen "Cascaded Systems Analysis of Noise Reduction Algorithms in Dual-Energy Imaging" Medical Physics (2007) Submitted

S. Richard and J. H. Siewerdsen "Optimization of dual-energy imaging systems using generalized NEQ and imaging task" Medical Physics 34[1]: 127-139 (2007). (pdf)

D. B. Williams, et al. “Optimal kVp selection for dual-energy imaging of the chest: Evaluation by task-specific, observer preference tests," Medical Physics 34[10]: (2007) (pdf)

N. A. Shkumat, et al. "Optimization of Image Acquisition Techniques for Dual-Energy Imaging of the Chest," Medical Physics 34[10]: (2007) (pdf)

 

2006                                                  

J. H. Siewerdsen, M. J. Daly, B. Bakhtiar, D. J. Moseley, S. Richard, H. Keller, and D. A. Jaffray. "A simple, direct method for x-ray scatter estimation and correction in digital radiography and cone-beam CT," Medical Physics 33[1]: 187-197 (2006)

 

2005                                                  

S. Richard, J. H. Siewerdsen, D. A. Jaffray, D. J. Moseley, and B. Bakhtiar "Generalized DQE analysis of radiographic and dual-energy imaging using flat-panel detectors" Medical Physics 32: 1397-1413 (2005) (pdf)

 

2004                                                  

J. H. Siewerdsen, A. M. Waese, D. J. Moseley, S. Richard, and D. A. Jaffray. "Spektr: a computational tool for x-ray spectral analysis and imaging system optimization," Medical Physics 31[11]: 3057-3067 (2004).

  J. H. Siewerdsen, D. J. Moseley, B. Bakhtiar, S. Richard, and D. A. Jaffray. "The influence of antiscatter grids on soft-tissue detectability in cone-beam computed tomography with flat-panel detectors," Medical Physics 31[12]: 3506-3520 (2004).