Measurement Of The Texture Contribution To Image Noise In Scintigrams

D. Shosa; L. Kaufman; R. Hattner; W. O'Connell

doi:10.1117/12.958913

18 August 1980 Measurement Of The Texture Contribution To Image Noise In Scintigrams

D. Shosa, L. Kaufman, R. Hattner, W. O'Connell

Proceedings Volume 0233, Application of Optical Instrumentation in Medicine VIII; (1980) https://doi.org/10.1117/12.958913
Event: Application of Optical Instrumentation in Medicine VIII, 1980, Las Vegas, United States

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.

Citation Download Citation

D. Shosa, L. Kaufman, R. Hattner, and W. O'Connell "Measurement Of The Texture Contribution To Image Noise In Scintigrams", Proc. SPIE 0233, Application of Optical Instrumentation in Medicine VIII, (18 August 1980); https://doi.org/10.1117/12.958913

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