A spectral analysis algorithm for the estimation of sea SAR image fractal dimension

Author

Berizzi, Fabrizio ; Garzelli, Andrea ; Mese, Enzo Dalle ; Condello, Rossana

Author_Institution

Dept. of Inf. Eng., Pisa Univ., Italy

Volume

6

fYear

2002

fDate

2002

Firstpage

3366

Abstract

This paper proposes a spectral analysis algorithm for sea SAR image fractal dimension estimation. The power spectral density of the sea SAR image is obtained through the periodogram approach and by decomposing the spectrum into sub-bands according to a dyadic scale. The fractal dimension of the image is obtained by a linear regression of the absolute maxima of each sub-band. This method can be applied globally or locally to have a single value or a map of the image fractal dimension. Examples on simulated and real data are reported.

Keywords

fractals; geophysical signal processing; ocean waves; oceanographic techniques; radar imaging; remote sensing by radar; spectral analysis; synthetic aperture radar; SAR; absolute maxima; dyadic scale; fractal dimension; linear regression; measurement technique; ocean wave; periodogram; radar image; radar imaging; radar remote sensing; rough surface; sea surface; spectral analysis algorithm; sub-bands; synthetic aperture radar; Fractals; Geometry; Linear regression; Rough surfaces; Sea surface; Shape; Signal processing; Spectral analysis; Surface roughness; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1027184

Filename

1027184