A new nonlinear diffusion equation for SAR speckle-removal
Xia Zhao · Chinese Journal of Quantum Electronics · 2007
Traditional speckle removal methods generally result in the loss of image features. Based on the principle analysis and the prior knowledge of SAR image,a new nonlinear diffusion model is constructed.Theoretical analysis and numerical results demonstrate that the proposed method can efficiently depress spackle and enhance the feature of SAR image.