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A 3-D nonlinear recursive digital filter for video image processingThis paper introduces a recursive 3-D nonlinear digital filter, which is capable of performing noise suppression without degrading important image information such as edges in space or time. It also has the property of unnoticeable bandwidth reduction immediately after a scene change, which makes the filter an attractive preprocessor to many interframe compression algorithms. The filter consists of a nonlinear 2-D spatial subfilter and a 1-D temporal filter. In order to achieve the required computational speed and increase the flexibility of the filter, all of the linear shift-variant filter modules are of the IIR type.
Document ID
19930050585
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bauer, P. H.
(NASA Lewis Research Center Cleveland, OH, United States)
Qian, W.
(Notre Dame Univ. IN, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publisher: Institute of Electrical and Electronics Engineers
Subject Category
Cybernetics
Accession Number
93A34582
Funding Number(s)
CONTRACT_GRANT: NAG3-1186
Distribution Limits
Public
Copyright
Other

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