Density dependence of signal detection in radiographs
- 1 September 1981
- journal article
- research article
- Published by Wiley in Medical Physics
- Vol. 8 (5) , 646-651
- https://doi.org/10.1118/1.595023
Abstract
Results were reported of the variation of signal detectability with radiographic film density for Lanex screens and 4 different X-ray films. Maximum signal detectability occurs near (but not precisely at) the maximum slope of the characteristic curve. The results were interpreted using a model that includes film .gamma.-quantum noise, film granularity and an intrinsic observer contrast threshold.Funding Information
- Medical Research Council Canada
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