摘要
研究了SAR相干斑统计特性和中值滤波的不足之处 ,阐述了加权中值滤波器的原理 ,并在此基础上针对SAR图像的特点提出了一种自适应优化加权中值滤波算法 ,该算法抑制SAR图像相干斑噪声时能够尽可能保持所需细节 ,达到了图像噪声和细节保持的最佳平衡。实际图像的测试结果表明了所提方法的有效性。
In this paper the insufficient of median filter in SAR Image noise attenuation is researched and the principle of weighted median filter was detailed. A new method called adaptive weighted median filter is derived according to characteristics of SAR image to obtain a balance of noise attenuation and image detail - preserving. The image processed is assessed and obtain good results.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2001年第11期38-39,共2页
Systems Engineering and Electronics
