Adaptive filtering algorithms for SAR speckle reduction
Yixiang Lu, S.Y. Tan, Tat‐Soon Yeo, Weiyi Ng, Ik Soo Lim, C.B. Zhang · 2002
Speckle noise in synthetic aperture radar (SAR) images reduces target feature detection. Two of the better known post-processing speckle suppression filters are the Lee (1986) and Kuan (1987) filters. The authors present modifications that have been made to the Lee and Kuan filters, such that there is an improvement in speckle suppression in regions of large back-scattering variations. Improvement over the original algorithms are illustrated using SEASAT images of Flevoland (Netherlands). Quantitative measures of performance for various types simulated terrain are also presented.