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Proceedings Paper

Digital Median Filters
Author(s): Gerald C. Holst
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Paper Abstract

Median filters are of interest because they eliminate impulse noise and preserve image edges. The output of these nonlinear filters depends upon the local statistics and therefore, no analytic expression exists to describe filter performance. Performance can only be inferred by using representative inputs. For imaging systems operating at or near the Nyquist frequency, median filters will eliminate unresolved and small targets. The effects of median filters are noticeable on periodic targets such as the four-bar resolution target used for minimum resolvable temperature measurements.

Paper Details

Date Published: 3 May 1988
PDF: 6 pages
Proc. SPIE 0890, Infrared Systems and Components II, (3 May 1988); doi: 10.1117/12.944282
Show Author Affiliations
Gerald C. Holst, Martin Marietta Electronic Systems (United States)

Published in SPIE Proceedings Vol. 0890:
Infrared Systems and Components II
H.M. Charles Liaw, Editor(s)

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