Name
Title | ||
|---|---|---|
Retrieval of ocean wavelength and wave direction from SAR image based on radon transform |
Abstract | ||
|---|---|---|
The method for retrieving the ocean wave spectrum from the Synthetic Aperture Radar (SAR) imagery is currently the most widely used for calculation of the wave high, wavelength and wave direction. However the most current of methods are relatively complicated. This paper presents an algorithm which is based on Radon transform. In this algorithm, firstly, with the property of Radon transform that the line in the SAR image and the point in the transformed space are one-to-one correspondence, the texture feature of the wave in SAR image is detected to calculate the wavelength and probable wave direction. Secondly, according to the theory of the ocean wave and the trends of the wavelength in two close sub-images, the actual wave direct ion is determined eventually. This article selects an ERS - 2 SAR image around Taiwan as the study area. The results of calculation are compared with the results obtained by Two-Dimensional Fast Fourier Transform (2D- FFT). The study results demonstrate that the use of the Radon transform is available without loss of the accuracy when retrieving the wave wavelength and wave direction from the ERS-2 SAR images. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/IGARSS.2013.6723074 | IGARSS |
Keywords | Field | DocType |
ocean wavelength retrieval,synthetic aperture radar,sar,radon transform,sar imagery,wave texture feature,ocean wave direction,ocean wave spectrum,taiwan,2d fast fourier transform,retrieval,oceanographic regions,ocean wave,ocean wave height,probable wave direction,2d fft,transformed space,ers-2 sar image,remote sensing by radar,ocean waves,texture features,geophysical image processing,oceanographic techniques,wave direction retrieval,image texture,radar imaging,fast fourier transforms,accuracy,feature extraction | Wind wave,Radar imaging,Computer science,Synthetic aperture radar,Image texture,Remote sensing,Wave radar,Fast Fourier transform,Radon transform,Wavelength | Conference |
Volume | Issue | ISSN |
null | null | 2153-6996 |
ISBN | Citations | PageRank |
978-1-4799-1114-1 | 2 | 0.37 |
References | Authors | |
0 | 7 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wei Zhao | 1 | 2 | 0.71 |
| Guoqing Zhou | 2 | 89 | 17.89 |
| Tao Yue | 3 | 5 | 4.44 |
| Bo Yang | 4 | 194 | 53.08 |
| Xiaodong Tao | 5 | 100 | 14.43 |
| Jingjin Huang | 6 | 12 | 4.04 |
| Chuntao Yang | 7 | 2 | 0.37 |