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In this paper, a self-adaptive 2-D continuous-wavelet-transform-based algorithm for extracting wave information from X-band nautical radar images is presented. After investigating the 2-D continuous wavelet transform and its application for radar image processing, it is found that the wavelet scaling parameters will affect the results of wave field analysis. The relation of the scaling parameters...
In this paper, a 2-D continuous wavelet transform-based algorithm for the extraction of wave information from X-band nautical radar images is presented. By reviewing the theory of the wavelet transform for image processing, a sophisticated scheme for the wavelet design is developed to obtain image spectra. First, the Morlet wavelet is selected and simplified as the mother wavelet. Then, a configuration...
In this paper, an enhanced band-pass filtering algorithm based on the 3-D Fourier transform is presented to extract ocean wave information from X-band nautical radar images. After the current velocity is determined by an iterative least-squares method with appropriate thresholds, the components of the image spectra will be classified as the fundamental, the firstorder harmonic waves and noise. In...
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