Title :
Gabor Transform for Subband SAS Imaging
Author :
Wilbur, J. ; McDonald, R. ; Brown, D.
Author_Institution :
Naval Surface Warfare Center, Panama City, FL
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;
Conference_Titel :
OCEANS 2006
Conference_Location :
Boston, MA
Print_ISBN :
1-4244-0114-3
Electronic_ISBN :
1-4244-0115-1
DOI :
10.1109/OCEANS.2006.306881
