Nonlinear Frequency Domain Techniques For Smoothing And Enhancement Of Radionuclide Images

Dennis L. Kirch; Donald W. Brown; Richard S. Trow

doi:10.1117/12.953662

1 June 1972 Nonlinear Frequency Domain Techniques For Smoothing And Enhancement Of Radionuclide Images

Dennis L. Kirch, Donald W. Brown, Richard S. Trow

Proceedings Volume 0035, Application of Optical Instrumentation in Medicine I; (1972) https://doi.org/10.1117/12.953662
Event: Application of Optical Instrumentation in Medicine, 1972, Chicago, United States

Abstract

Two of the most fundamental parameters which influence the fidelity of clinical radionuclide images are the information den-sity and the composite resolution of the instruments which are utilized in the scintigraphic imaging process. We can basically describe such images as being inherently "noisy" and "out-of-focus" for these respective reasons. The interrelated conditions which contribute to this situation are briefly described as follows: 1) there are limitations on the amounts of radioactive substances which can safely be injected into patients as as the time available for performing the imaging procedure. 2) The design considerations for lead collimators place such factors as resolution, overall efficiency, and depth of focus at odds with one another. 3) The "state-of-the-art" in terms of the intrinsic resolution available from existing gamma ray detection and imaging devices leaves much to be desired.

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Dennis L. Kirch, Donald W. Brown, and Richard S. Trow "Nonlinear Frequency Domain Techniques For Smoothing And Enhancement Of Radionuclide Images", Proc. SPIE 0035, Application of Optical Instrumentation in Medicine I, (1 June 1972); https://doi.org/10.1117/12.953662

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KEYWORDS

Digital filtering

Linear filtering

Image processing

Smoothing

Image resolution

Image filtering

Imaging systems

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