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Proceedings Paper

Measurement Of The Texture Contribution To Image Noise In Scintigrams
Author(s): D. Shosa; L. Kaufman; R. Hattner; W. O'Connell
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Paper Abstract

When a digital image of a uniform radiation source is obtained with a scintillation camera, the action of a variety of cortical receptive fields employed by the human observer can be simulated with a computer. A frequency diagram of receptor output can be generated by scanning the simulated receptor (which includes both exitory and inhibitory weightings of local image intensity). Although the measured frequency distributions exhibit a generally Gaussian shape, the dispersions are larger than predicted by Poisson statistics. The quadratic difference between measured dispersions and those predicted with Poisson statistics yields a measure of the texture contribution to noise that is interpretable in terms of small signal detection theory.

Paper Details

Date Published: 18 August 1980
PDF: 3 pages
Proc. SPIE 0233, Application of Optical Instrumentation in Medicine VIII, (18 August 1980); doi: 10.1117/12.958913
Show Author Affiliations
D. Shosa, University of California (United States)
L. Kaufman, University of California (United States)
R. Hattner, University of California (United States)
W. O'Connell, University of California (United States)


Published in SPIE Proceedings Vol. 0233:
Application of Optical Instrumentation in Medicine VIII
Joel E. Gray; William R. Hendee; Andrew G. Haus; William S. Properzio, Editor(s)

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