Smoothing speckled images using an adaptive rational operator

被引：12

作者：

Ramponi, G ^{[1
]}

Moloney, C ^{[1
]}

机构：

[1] MEM UNIV NEWFOUNDLAND,FAC ENGN & APPL SCI,ST JOHNS,NF A1B 3X5,CANADA

来源：

IEEE SIGNAL PROCESSING LETTERS | 1997年 / 4卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/97.558641

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：68 / 71

页数：4

共 9 条

[1] SOME FUNDAMENTAL PROPERTIES OF SPECKLE
GOODMAN, JW
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1976, 66 (11) : 1145 - 1150
[2] SPECKLE ANALYSIS AND SMOOTHING OF SYNTHETIC APERTURE RADAR IMAGES
LEE, JS
[J]. COMPUTER GRAPHICS AND IMAGE PROCESSING, 1981, 17 (01): : 24 - 32
[3] MOLONEY CR, 1994, P EUSIPCO 94, V3, P1776
[4] NONLINEAR IMAGE FILTERING WITH EDGE AND CORNER ENHANCEMENT
NITZBERG, M
SHIOTA, T
[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1992, 14 (08) : 826 - 833
[5] SCALE-SPACE AND EDGE-DETECTION USING ANISOTROPIC DIFFUSION
PERONA, P
MALIK, J
[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1990, 12 (07) : 629 - 639
[6] The rational filter for image smoothing
Ramponi, G
[J]. IEEE SIGNAL PROCESSING LETTERS, 1996, 3 (03) : 63 - 65
[7] DETAIL-PRESERVING FILTER FOR NOISY IMAGES
RAMPONI, G
[J]. ELECTRONICS LETTERS, 1995, 31 (11) : 865 - 866
[8] WHEN IS SPECKLE NOISE MULTIPLICATIVE
TUR, M
CHIN, KC
GOODMAN, JW
[J]. APPLIED OPTICS, 1982, 21 (07): : 1157 - 1159
[9] ZAMAN MR, 1993, P INT C AC SPEECH SI, V5, P77

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