Application Of Spatial Filtering To CT Imagery

T. M. Peters; S. C. Strother

doi:10.1117/12.934514

1 November 1982 Application Of Spatial Filtering To CT Imagery

T. M. Peters, S. C. Strother

Proceedings Volume 0372, Physics and Engineering in Medical Imaging; (1982) https://doi.org/10.1117/12.934514
Event: International Workshop on Physics and Engineering in Medical Imaging, 1982, Pacific Grove, United States

Abstract

We consider the application of various low-pass (noise reduction and/or smoothing) and high-pass (image restoration/enhancement) filters to reconstructed CT images. Limitations of some traditional smoothing filters are described and modified filters which overcome these disadvantages are presented. A second class of filter attempts to compensate for image degradation effects introduced by the system transfer function (influenced primarily by detector and source aperture sizes). We specifically investigate the Wiener filter as a convenient means of implementing the image restoration procedure.

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T. M. Peters and S. C. Strother "Application Of Spatial Filtering To CT Imagery", Proc. SPIE 0372, Physics and Engineering in Medical Imaging, (1 November 1982); https://doi.org/10.1117/12.934514

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