Restoration of DTI images based on anisotropic diffusion

The anisotropic diffusion equations-Perona Malik(PM)equations are resorted to to decrease the Rician noise introduced into the diffusion weighted(DW)images.To evaluate the efficiency of the PM equations(with different functions)in accounting for the Rician noise,many experiments are designed.The results acquired from both Monte Carlo simulation experiments and real data based experiments proves the better performance of the reciprocal function based PM equation in denoising the DTI images.