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提出了一种基于平稳小波变换的合成孔径雷达 (syntheticaperturradar,SAR)图像相干斑噪声抑制方法 ,即通过对SAR图像进行多层平稳小波变换 ,对平稳小波变换的细节图像信号进行阈值处理 ,以达到相干斑噪声抑制的目的 .实验结果表明 :此方法除了对相干斑噪声有很好的抑制作用外 ,还保留了尽可能多的目标特征和图像细节 ,有着较好的图像视觉效果 .
A method of suppressing the speckle noise of synthetic aperture radar (SAR) based on stationary wavelet transform is proposed. That is to say, through the multi-level stationary wavelet transform of SAR image, the detail image signal of stationary wavelet transform is thresholded to achieve And speckle noise suppression.The experimental results show that this method not only has a good effect on the speckle noise but also preserves as many target features and image details as possible and has good image visual effects.