1. Heat Diffusion Homogeneous Isotropic Diffusion
Non-homogeneous, but Isotropic Diffusion
Anisotropic Diffusion

2. Diffusion Models
Isotropic Diffusion
Canny
Nonlinear diffusion

3. The models of heat diffusion
Anisotropic Diffusion
Perona-Malik

4. Nonlinear anisotropic diffusion
Y.Chen & S.Chastain
Image recovery via diffusion tensor and time-delay regularization, Special issue on the topic of PDE’s in image processing, computer vision, and computer graphics

5. Nonlinear Anisotropic Diffusion
Diffsion Tensor

6. Nonlinear Anisotropic Diffusion
Diffusion Tensor

7. Theoretical Analysis

8. System (S) is a degenerate parabolic system