New optimal diffusion parameter estimate method based on PM model
Hailin Zou · Computer Engineering and Applications Journal · 2011
The key of image nonlinear diffusion filtering based on PDE(Partial Differential Equations) is to determine the appropriate diffusion mechanism and parameters.Combined with the images'structures and visual features,this paper proposes an optimal gradient threshold and optimal diffusion time scale estimate method on a basis of analyzing the characteristics of nonlinear diffusion.The experimental result shows that the new method has better stability and visual features compared with MSE,SNR and minimum correlation coefficient.