基于有选择保边缘平滑法的SAR干涉图像滤波算法

Interferometer SAR Image Noise Reduction Based on Selective Edge-preservation Smoothness Method

本文提出了一种基于有选择保边缘平滑的合成孔径雷达干涉图像相位噪声抑制的算法。该方法以方差作为各个邻域均匀性的测度,分别对干涉图的实部和虚部进行平滑处理,不仅可以有效地抑制SAR干涉图的相位噪声,较好地保持边缘细节,而且处理所得的图像结果有着良好的视觉效果。

This paper gives a new phase noises reduction method based on selective edge-preservation smoother. It uses sample variance as even estimate of each neighborhood, and smoothes the real and imaginary parts of SAR intefferogram respectively. This new way not only makes the best maintenance of the intefferometric fringe＇s texture, but also filters out the noises. Thus, the interferogram processed by the proposed method should always have good visual effect.