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Proceedings Paper

Correlated point processes in radiological imaging
Author(s): Harrison H. Barrett; Robert F. Wagner; Kyle J. Myers
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Paper Abstract

A variety of problems in radiological imaging can be formulated in terms of point processes, which are random processes where every sample function is a sum of delta functions. Under certain postulates, especially one relating to statistical independence of the points,t he first- and second-order statistics of the process are well known. This paper treats correlated point processes where the postulates are not satisfied. The main kinds of correlation considered result from randomness in the radiation source and image amplification. Expressions are given for the mean, the autocorrelation and autocovariance functions and, in the stationary approximation, the power spectral density.

Paper Details

Date Published: 2 May 1997
PDF: 15 pages
Proc. SPIE 3032, Medical Imaging 1997: Physics of Medical Imaging, (2 May 1997); doi: 10.1117/12.273975
Show Author Affiliations
Harrison H. Barrett, Health Sciences Ctr. and Optical Sciences Ctr./Univ. of Arizona (United States)
Robert F. Wagner, Ctr. for Devices and Radiological Health/FDA (United States)
Kyle J. Myers, Ctr. for Devices and Radiological Health/FDA (United States)


Published in SPIE Proceedings Vol. 3032:
Medical Imaging 1997: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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