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Measurement of image intensifier system modulation transfer function by video signal analysis
Author(s) -
McRobbie D. W.,
NietoCamero J. J.
Publication year - 1994
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 - 10.1118/1.597286
Subject(s) - optical transfer function , image intensifier , image quality , transfer function , signal (programming language) , computer science , optics , image resolution , modulation (music) , signal processing , computer vision , artificial intelligence , image (mathematics) , physics , acoustics , telecommunications , engineering , electrical engineering , radar , programming language
A technique for the measurement of the modulation transfer function (MTF) of image intensifier systems by means of video signal analysis is presented. The MTF can be measured in both horizontal and vertical directions. The method is applicable to routine quality assurance testing in the field. The limitations on accuracy of the technique are investigated by computer simulation. Experimental results reported for several image intensifier systems correlate well with subjective assessments of limiting resolution and other parameters.