DocumentCode :
2597232
Title :
Detection and location of internal waves in ocean SAR images by means of wavelet decomposition analysis
Author :
Rodenas, Josep A. ; Garello, René
Author_Institution :
Telecom Bretagne, Brest, France
Volume :
4
fYear :
1996
fDate :
27-31 May 1996
Firstpage :
1953
Abstract :
Presents the construction of an appropriate wavelet basis based on a soliton analytical model, to detect and localize these nonlinear signatures in SAR images. A local statistics filter, to suppress the speckle noise produced in the process of forming the images, is applied so as to obtain noiseless SAR images profiles. The structure of arbitrary wavelet basis derived from the generalized B-spline wavelets is studied in order to obtain a more optimal decomposition. Comparisons are made for wavelet decompositions based on several families of compactly supported wavelets
Keywords :
geophysical signal processing; ocean waves; oceanographic techniques; radar imaging; remote sensing by radar; synthetic aperture radar; wavelet transforms; SAR image; compactly supported wavelets; detection; generalized B-spline wavelet; internal wave location; local statistics filter; measurement technique; nonlinear signature; ocean dynamics; ocean wave; optimal decomposition; radar imaging; radar remote sensing; sea surface; soliton analytical model; wavelet decomposition analysis; Discrete wavelet transforms; Filters; Image analysis; Oceans; Radar imaging; Rough surfaces; Spaceborne radar; Speckle; Synthetic aperture radar; Wavelet analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
Type :
conf
DOI :
10.1109/IGARSS.1996.516853
Filename :
516853
Link To Document :
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