Title :
Radon transform for internal wave detection and orientation
Author :
Rodenas, Josep A. ; Mandelert, Nicolas ; Garello, Rene
Author_Institution :
Dept. ITI, Ecole Nat. Super. des Telecommun. de Bretagne, Brest, France
Abstract :
This paper studies the feasibility of using the Radon transform to detect and orientate internal wave features from SAR images since it seems to be well suited for extracting quasi-linear features even at low signal-to-noise levels. The approach is based on the localized Radon transform where the intensity integration is performed over short line segments rather than across the entire image. The results of this testing demonstrate the algorithm´s robustness in the presence of speckle noise, as well as its ability to detect, localize, and orientate internal wave features that are significantly shorter than the image dimensions or that display some curvature.
Keywords :
Radon transforms; feature extraction; radar imaging; speckle; synthetic aperture radar; Radon transform; SAR image; internal wave orientation; orientate internal wave feature detection; quasilinear feature extraction; signal-to-noise level; speckle noise; Feature extraction; Noise; Radar imaging; Surface waves; Synthetic aperture radar; Transforms;
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4