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An IIR median hybrid filterA new class of nonlinear filters, the so-called class of multidirectional infinite impulse response median hybrid filters, is presented and analyzed. The input signal is processed twice using a linear shift-invariant infinite impulse response filtering module: once with normal causality and a second time with inverted causality. The final output of the MIMH filter is the median of the two-directional outputs and the original input signal. Thus, the MIMH filter is a concatenation of linear filtering and nonlinear filtering (a median filtering module). Because of this unique scheme, the MIMH filter possesses many desirable properties which are both proven and analyzed (including impulse removal, step preservation, and noise suppression). A comparison to other existing median type filters is also provided.
Document ID
19920057751
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bauer, Peter H.
(NASA Lewis Research Center Cleveland, OH, United States)
Sartori, Michael A.
(Notre Dame, University IN, United States)
Bryden, Timothy M.
(IBM Corp. Poughkeepsie, NY, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1992
Publication Information
Publication: IEEE Transactions on Signal Processing
Volume: 40
Issue: 5 Ma
ISSN: 1053-587X
Subject Category
Cybernetics
Accession Number
92A40375
Funding Number(s)
CONTRACT_GRANT: NAG3-1186
Distribution Limits
Public
Copyright
Other

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