PDE-Based Non-Linear Anisotropic Diffusion Techniques for Medical Image Denoising

Combining the wavelet analysis and partial differential equations denoising method and applying synthesis algorithm applied to CT image denoising in this paper. It has some advantages: small amount of calculation, pay attention to subtle changes when denoise, highlight the local character of image, overcome the inadequacy of single wavelet transform method to a certain extent. Both theoretical analysis and simulation have verified the validity of revised method proposed in this paper.