【摘要】 针对典型4f信息光学系统的低通特性和高斯白噪声性,引入合成孔径雷达(SAR)领域中常用的统计参数标准,提出一种小波阈值去噪方案。通过实际和仿真实验验证,该方案能有效滤除噪声,同时较好地保留有用细节信息,适合类似于4f信息光学系统的含有高斯白噪声和明显低通滤波效果的应用场合。更多还原

【Abstract】 Concerning the low pass characteristic and white Gaussian noise of the typical information optics system, by introducing the statistic parameters from synthetic aperture radar (SAR) research, a new wavelet threshold denoising method was provided. Reality and emulational experiments show that the method can effectively denoise the image and keep useful detail information. It is suitable for the applications of low pass filtering and white Gaussian noised system like 4f system.更多还原