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Aliasing effects in digital images of line-pair phantoms
Michael Albert1, Daniel J Beideck, Predrag R Bakic
1Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107-5563, USA.
Medical Physics
|August 31, 2002
Abstract:
Line-pair phantoms are commonly used for evaluating screen-film systems. When imaged digitally, aliasing effects give rise to additional periodic patterns. This paper examines one such effect that medical physicists are likely to encounter, and which can be used as an indicator of super-resolution.