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An MTF method immune to aliasing
Author(s) -
Droege Ronald T.,
Rzeszotarski Mark S.
Publication year - 1985
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595654
Subject(s) - aliasing , optical transfer function , variance (accounting) , transfer function , computer science , artificial intelligence , optics , computer vision , physics , electrical engineering , accounting , undersampling , business , engineering
The variance derived from the images of cyclic bar patterns can be used to determine the modulation transfer function (MTF) of an imaging system. Unlike most MTF methods, it is applicable even when the imaging system undersamples the test object and generates aliasing errors. The validity of the variance method in the presence of aliasing is established theoretically and by computer simulation.

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