Smoothing effect of wavelet-based speckle filtering: The Haar basis case

被引：19

作者：

Fukuda, S ^{[1
]}

Hirosawa, H ^{[1
]}

机构：

[1] Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1999年 / 37卷 / 02期

关键词：

speckle reduction; speckle wavelet; synthetic aperture radar (SAR);

D O I：

10.1109/36.752236

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The smoothing effect of the wavelet-based speckle filtering that we proposed is investigated. The filtering reduces the amplitude of wavelet coefficients, and a theoretical investigation with the Haar basis derives a functional relation between the ENL and two parameters: the wavelet level and the degree of the amplitude reduction.

引用

页码：1168 / 1172

页数：5

共 17 条

[1]

CHEN CH, P IGARSS 97 SING, P1190

[2] ORTHONORMAL BASES OF COMPACTLY SUPPORTED WAVELETS [J].

DAUBECHIES, I .

COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS, 1988, 41 (07) :909-996

[3] DE-NOISING BY SOFT-THRESHOLDING [J].

DONOHO, DL .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1995, 41 (03) :613-627

[4] A MODEL FOR RADAR IMAGES AND ITS APPLICATION TO ADAPTIVE DIGITAL FILTERING OF MULTIPLICATIVE NOISE [J].

FROST, VS ;

STILES, JA ;

SHANMUGAN, KS ;

HOLTZMAN, JC .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1982, 4 (02) :157-166

[5] Suppression of speckle in synthetic aperture radar images using wavelet [J].

Fukuda, S ;

Hirosawa, H .

INTERNATIONAL JOURNAL OF REMOTE SENSING, 1998, 19 (03) :507-519

[6]

FUKUDA S, P IGARSS 97 SING, P1187

[7] SOME FUNDAMENTAL PROPERTIES OF SPECKLE [J].

GOODMAN, JW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1976, 66 (11) :1145-1150

[8] MODEL FOR NON-RAYLEIGH SEA ECHO [J].

JAKEMAN, E ;

PUSEY, PN .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1976, 24 (06) :806-814

[9] ADAPTIVE RESTORATION OF IMAGES WITH SPECKLE [J].

KUAN, DT ;

SAWCHUK, AA ;

STRAND, TC ;

CHAVEL, P .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1987, 35 (03) :373-383

[10] ADAPTIVE NOISE SMOOTHING FILTER FOR IMAGES WITH SIGNAL-DEPENDENT NOISE [J].

KUAN, DT ;

SAWCHUK, AA ;

STRAND, TC ;

CHAVEL, P .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1985, 7 (02) :165-177

← 1 2 →