DocumentCode
1336071
Title
Smoothing speckled images using an adaptive rational operator
Author
Ramponi, G. ; Moloney, C.
Author_Institution
Dipt. di Elettronica, Trieste Univ., Italy
Volume
4
Issue
3
fYear
1997
fDate
3/1/1997 12:00:00 AM
Firstpage
68
Lastpage
71
Abstract
This letter presents an adaptive rational filter for use in smoothing correlated speckle noise in images while preserving edges. The filter adapts to local conditions via point estimates of the standard deviation to mean ratio. The filter´s performance is demonstrated by quantitative tests on synthetically corrupted speckled images.
Keywords
adaptive filters; image processing; random noise; smoothing methods; speckle; adaptive rational filter; adaptive rational operator; correlated speckle noise; smoothing; speckled images; Adaptive filters; Laser noise; Laser radar; Nonlinear filters; Signal to noise ratio; Smoothing methods; Speckle; Synthetic aperture radar; Testing; Ultrasonic imaging;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.558641
Filename
558641
Link To Document