Dr. Ian A. Cunningham
Scientist at Robarts Research Inst / Western University
SPIE Involvement:
Author | Instructor
Publications (57)

Proceedings Article | 13 March 2024 Presentation + Paper
Proceedings Volume 12832, 1283204 (2024) https://doi.org/10.1117/12.3001133
KEYWORDS: X-rays, Optical sensors, Aluminum, Tunable filters, Sensors, Calibration, Displays, Radiography, Pulse signals, Data acquisition

Proceedings Article | 13 March 2024 Presentation + Paper
Proceedings Volume 12832, 1283205 (2024) https://doi.org/10.1117/12.3003269
KEYWORDS: Modulation transfer functions, Microscopes, Optical resolution, Light emitting diodes, Image restoration, Optical testing, Spatial resolution

Proceedings Article | 7 April 2023 Poster + Paper
Proceedings Volume 12463, 1246323 (2023) https://doi.org/10.1117/12.2651570
KEYWORDS: Tunable filters, Signal to noise ratio, Nickel, Image filtering, Angiography, X-ray imaging, Visibility, Visualization, Dual energy imaging, Attenuation

SPIE Journal Paper | 16 March 2022 Open Access
JMI, Vol. 9, Issue S1, 012205, (March 2022) https://doi.org/10.1117/12.10.1117/1.JMI.9.S1.012205

Proceedings Article | 15 February 2021 Presentation + Paper
Proceedings Volume 11595, 115951A (2021) https://doi.org/10.1117/12.2580057
KEYWORDS: Modulation transfer functions, Image processing, Detection and tracking algorithms, Fourier transforms, Algorithm development, X-ray detectors, Sensors, Interference (communication), Image sensors

Showing 5 of 57 publications
Course Instructor
SC358: X-Ray Detector Performance and DQE: Principles and Measurements using a Linear-Systems Approach
Medical x-ray imaging systems must be designed to ensure that maximum image quality is obtained for a specified radiation dose to the patient, and quality assurance programs are used to ensure these standards are maintained. This course is designed for anyone who wants to extend their understanding of how image quality is related to detector design and what that implies: how to talk about it, how to think about it, how to measure it and how to compare it. Performance metrics including the MTF, NPS, NEQ and DQE in digital radiography and mammography will be discussed. A cascaded-systems analysis will be used to help interpret the DQE of some real systems. The DQE of photon-counting systems, and the impact of detector limitations, will be discussed. Both non-mathematical intuitive descriptions and more rigorous mathematical descriptions will be presented.
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