Composite enhancing and denoising algorithm for SAR images based on scale space correlation
Jinzhao Lin · Journal of Xidian University · 2010
A composite adaptive enhancing and denoising algorithm for SAR images is presented.The SAR images are differentiated from speckle noise via scale space correlation.Because the SAR image can be described by approximate rayleigh's distribution,the complex diffusion coupled shock filter is used to enhance the signal differentiated from SAR image,and the anisotropic diffusion equation is used to denoise the speckle in the SAR image.Finally,the SAR image is reconstructed by stationary wavelet transform.Compared with traditional speckle removal algorithms,this new algorithm has better performance in terms of edge preserving and denoising.