Power Spectrum Analysis Of Gamma Camera Image Noise: Stochastic And Nonstochastic Effects

Laurence W Grossman; Mary P Anderson; Robert J Jennings; James B. Kruger; Steven J Luke; Robert F. Wagner; Charles P. Warr

doi:10.1117/12.939334

15 June 1984 Power Spectrum Analysis Of Gamma Camera Image Noise: Stochastic And Nonstochastic Effects

Laurence W Grossman, Mary P Anderson, Robert J Jennings, James B. Kruger, Steven J Luke, Robert F. Wagner, Charles P. Warr

Author Affiliations +

Proceedings Volume 0454, Application of Optical Instrumentation in Medicine XII; (1984) https://doi.org/10.1117/12.939334
Event: Application of Optical Instrumentation in Medicine XII, 1984, San Diego, United States

Abstract

Noise power spectrum analysis was performed on scintillation camera images. The analysis was performed on a set of field floods, uniform exposures over the field of view, in such a way that stochastic and nonstochastic effects for the set were separable. Stochastic noise for the digitally acquired images was found to approach the limit of Poisson count statistics. The nonstochastic component of the calculations dominated the results at the lower spatial frequencies. The noise power spectrum calculations retained information about the patterns of the noise in real-space images. Examples of digitization, photomultiplier tube mottle and edge-packing artifacts are presented.

Citation Download Citation

Laurence W Grossman, Mary P Anderson, Robert J Jennings, James B. Kruger, Steven J Luke, Robert F. Wagner, and Charles P. Warr "Power Spectrum Analysis Of Gamma Camera Image Noise: Stochastic And Nonstochastic Effects", Proc. SPIE 0454, Application of Optical Instrumentation in Medicine XII, (15 June 1984); https://doi.org/10.1117/12.939334

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