An Adaptive Anisotropic Method for Speckle Suppression
Jiamu Li, Zhongjun Yu, Yunhua Luo, Zijian Wang, Wenbo Yu · 2021
The speckle noise affects the interpretation of the synthetic aperture radar (SAR) images. It is important to preserve the information of high frequency in the filtering process. A novel local adaptive anisotropic method is proposed. The method is applied to the partial differential equation (PDE) to calculate the diffusion coefficient for de-speckling of SAR image. By experimenting with real SAR images, the new method has better filtering effect and better real-time performance compared than other filtering methods.