Enclosed Laplacian Operator of Nonlinear Anisotropic Diffusion to preserve singularities and delete isolated points in image smoothing. Liao, Zhiwu; Hu, Shaoxiang; Sun, Dan; Chen, Wufan — 2011 Mathematical Problems in Engineering
A numerical method for preserving curve edges in nonlinear anisotropic smoothing. Hu, Shaoxiang; Liao, Zhiwu; Sun, Dan; Chen, Wufan — 2011 Mathematical Problems in Engineering