摘要
TerraSAR-X是世界上首颗商用的分辨雷达到1m的雷达卫星,具有广阔的应用前景。针对TerraSAR-X图像中的speckle噪声抑制问题,首先分析了噪声的基本数学模型,进而考察了几种经典斑点抑制算法,在此基础上,将模糊集理论引入到speckle噪声抑制问题中,构造了一种基于局域自适应模糊滤波核的speckle噪声抑制算法,通过对TerraSAR-X图像处理效果的实验分析,验证了算法的可行性,可以有效的抑制图像中的speckle噪声,显示出模糊集理论在TerraSAR-X图像speckle噪声抑制问题中的应用潜力。
TerraSAR-X is the first commercial radar satellite with lm resolution. As for the reduction of spckle nosie, several classical algorithms were investigated based on the mathmatical model analysis firstly, and then the Fuzzy theory was introduced to construct an local adaptive fuzzy filter kernel to restrain the speckle noisse. The experiment with the TerraSAR-X images indicated that this algorithm has a good processing performance, for the removal of the speckle noise, as well as the potential of the Fuzzy theory for speckle noise reduction.
出处
《科技信息》
2009年第17期23-24,14,共3页
Science & Technology Information
