A modified method to configure the parameters of the bilateral filtering for synthetic aperture radar image speckle reduction

作者：Li Jin Cai^*; Huang Bin; Peng Yu Xing

来源：Acta Physica Sinica, 2012, 61(18): 189501.

DOI：10.7498/aps.61.189501

• bilateral filtering
• synthetic aperture radar
• speckle reduction
• parameters configuration

Bilateral filtering can effectively smooth synthetic aperture radar (SAR) images with preserving the edges, but it is difficult to configure the parameters of bilateral filtering to the optimum. The iterative method to configure the parameters with high precision and efficiency has been presented, but the iterative process may be aborted incorrectly. In this paper, we present a modified configuration method to get the optimal trade-off parameters, and give the proof of the convergence of the method. The experimental results on real SAR images show that the modified method can not only obtain equivalent visibility as the iterative method, but also higher accuracy of the gray value similarity variance than that under identical iterative precision. With the iterative precision improved, the convergence rate of the modified method is faster than that of the iterative method.

• 出版日期2012
• 单位怀化学院; 中国人民解放军国防科学技术大学