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Proceedings Paper

The Dependence Of Quantum Noise On Screen Sharpness
Author(s): R. S. Holland; R. E. Kellogg
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Paper Abstract

While radiographic mottle is predominantly statistical noise and fundamentally dependent on the number of screen absorbed x-ray photons per exposure, the noise recorded on film and perceived by the radiologist is also dependent on sharpness. To measure this effect quantitatively, we have compared Wiener spectra for systems with equal statistics, but with sequential reductions in the modulation transfer function. The data suggest that many examinations, such as tomograms, gall bladders and angiograms could benefit from a deliber-ate reduction in screen/film sharpness so as to decrease noise in an already unsharp radiologic image.

Paper Details

Date Published: 23 December 1976
PDF: 8 pages
Proc. SPIE 0096, Application of Optical Instrumentation in Medicine V, (23 December 1976); doi: 10.1117/12.965409
Show Author Affiliations
R. S. Holland, E. I. Du Pont de Nemours and Company, Inc. (United States)
R. E. Kellogg, E. I. Du Pont de Nemours and Company, Inc. (United States)


Published in SPIE Proceedings Vol. 0096:
Application of Optical Instrumentation in Medicine V
Robert K. Cacak; Paul L. Carson; Gregory Dubuque; Joel E. Gray; William R. Hendee; Raymond P. Rossi; Arthur Haus, Editor(s)

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