DocumentCode
2034678
Title
Elimination of bias in the FIR-median hybrid filter
Author
Longbotham, H.G. ; Zhang, M. ; Engelken, E.
Author_Institution
Nonlinear Signal Process. Lab., Texas Univ., San Antonio, TX, USA
Volume
1
fYear
1994
fDate
13-16 Nov 1994
Firstpage
795
Abstract
In Heinonen and Neuvo (1988), the FIR-median hybrid (FMH) filter, a class of median type filters for image processing was proposed. In these filters, linear FIR predictors are used in conjunction with the median operation. In the present paper, the one dimensional FMH is shown to be biased at boundaries and does not smooth junctions well for one dimensional signals. In addition it does not preserve corners of less than 900 or line endings for two dimensional signal. The residual technique introduced can solve both of these problems
Keywords
FIR filters; image processing; median filters; prediction theory; two-dimensional digital filters; FIR-median hybrid filter; FMH filter; bias; boundaries; corners; image processing; junctions; line endings; linear FIR predictors; median type filters; one dimensional FMH filter; one dimensional signal; residual technique; two dimensional signal; Concatenated codes; Finite impulse response filter; Focusing; Image processing; Nonlinear filters; Signal processing;
fLanguage
English
Publisher
ieee
Conference_Titel
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location
Austin, TX
Print_ISBN
0-8186-6952-7
Type
conf
DOI
10.1109/ICIP.1994.413424
Filename
413424
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