Speckle Suppress for SAR Images Based on Pyramidal Morphology Algorithm
Gong Zhang, Zhaoda Zhu, Ning-yi ZHU · Chinese Journal of Aeronautics · 2003
A Pyramidal Morphology Algorithm is developed for speckle reduction of SAR images in this paper. For reducing the loss of information in the pyramidal algorithm for morphology processing, in this modified algorithm, the sub-images are processed parallel in the downs sampling operation and the sub-images are reconstructed in the upsampling operation. It can be applied to image filtering parallel. After analysis the computer simulations show that these two kinds of filters are both effective in speckle reduction of SAR images. The modified parallel algorithm does better than the original algorithm and Lee filter on some characteristics.