Gabor Transform for Subband SAS Imaging

Author

Wilbur, J. ; McDonald, R. ; Brown, D.

Author_Institution

Naval Surface Warfare Center, Panama City, FL

fYear

2006

fDate

18-21 Sept. 2006

Firstpage

1

Lastpage

4

Abstract

This paper describes a method for integrating a frequency-dependent object characterization into a practical sonar imaging system. Integration of joint time-frequency (JTF) processing into broadband SAS imaging enables one to add another dimension (frequency) to the object feature space without compromising resolution. JTF processing enables a user to construct a 3-D image description around objects of interest. The Gabor transform is used to capture the local frequency behavior in the image. The Gabor coefficients are used to reconstruct multispectral images

Keywords

Gabor filters; image reconstruction; object recognition; sonar imaging; underwater sound; 3D image description; Gabor coefficients; Gabor transform; JTF processing; broadband SAS imaging; frequency-dependent object characterization; image local frequency behavior; joint time-frequency prcessing; multispectral image reconstruction; object feature space; sonar imaging system; subband SAS imaging; Acoustic scattering; Acoustic waves; Backscatter; Biological system modeling; Finite impulse response filter; Frequency dependence; Radar scattering; Synthetic aperture sonar; Time frequency analysis; Tin;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2006

Conference_Location

Boston, MA

Print_ISBN

1-4244-0114-3

Electronic_ISBN

1-4244-0115-1

Type

conf

DOI

10.1109/OCEANS.2006.306881

Filename

4099036