In the course, make iterated processing to get good result 并在此过程中,对滤波结果进行迭代,以获得优化的结果。
3, on the base of the traditional spatial filtering, the author present, a new despeckle algorithm, that make use of iterated processing and correlated neighbourhood model, iterated filtering method of the sar image combining the correlated neighbourhood model with maximum a posteriori filter . first, a series of templates refecting direction information are established and every template is present for a kind of neighbour structure . then on the basis of sar images statistical property, the maximum a posteriori estimate of the real intensity under observation image values is got by bayes formulatio-n 3、针对传统空间滤波器的不足,引入迭代处理和相关邻域模型的概念,提出了基于相关邻域模型的最大后验迭代滤波。该算法引用一系列反映局部边界特征的邻域模型,以描述图像的细节。引入强度的先验概率分布模型,利用bayes方法,对各个结构进行实际强度的最大后验估计。