28 June 2001 Lesion detectability in digital radiography
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Abstract
The usefulness of Fourier-based measures of imaging performance has come into question for the evaluation of digital imaging systems. Figures of merit such as detective quantum efficiency are relevant for linear, shift-invariant systems with stationary noise. However, no digital imaging system is shift invariant, and realistic images do not satisfy the stationarity condition. Our methods for task- based evaluation of imaging systems, based on lesion detectability, do not require such assumptions. We have computed the performance of Hotelling and nonprewhitening matched-filter observers for the task of lesion detection in digital radiography.
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Robert M. Gagne, Robert M. Gagne, Jonathan S. Boswell, Jonathan S. Boswell, Kyle J. Myers, Kyle J. Myers, Guillaume Peter, Guillaume Peter, } "Lesion detectability in digital radiography", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); doi: 10.1117/12.430902; https://doi.org/10.1117/12.430902
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