【摘要】 增强具有风浪纹理的SAR海洋图像并保持其他海洋特征可以推动其在海洋学中的应用。该文引入干涉图Goldstein滤波器,通过图像谱中风浪成分与噪声比率自适应地确定增强系数,实现高频风浪纹理增强;通过SAR成像参数及海面风速,确定图像谱中分离波数,实现低频中/大尺度海洋特征保持。原理分析和实验表明,该方法具有显著的风浪纹理增强效果,同时保持了中/大尺度海洋纹理,实现效率高且适用性较强。更多还原

【Abstract】 Enhanced SAR ocean images with wind wave signatures and reserved other oceanographic features can promote oceanographic applications.Based on the Goldstein interferogram filter,the enhanced parameter is adaptively determined by the wind wave spectrum power to noise ratio.Meanwhile,the divided wavenumber is determined by SAR imaging parameters and in-suit ocean wind to reserve the low frequency spectrum components.Therefore,the wind wave features are dramatically enhanced and the abundant oceanographic signatures are reserved.Algorithm analysis and experiments show the reasonable efficiency and capabilities.更多还原