POTHEA: A program for computing eigenvalues and eigenfunctions and their first derivatives with respect to the parameter of the parametric self-adjoined 2D elliptic partial differential equation.
A. A. GusevOchbadrakh ChuluunbaatarSergey I. VinitskyA. G. AbrashkevichPublished in: Comput. Phys. Commun. (2014)
Keyphrases
- partial differential equations
- finite difference
- image denoising
- anisotropic diffusion
- level set
- image processing
- boundary value problem
- numerical solution
- multiscale
- numerical methods
- energy functional
- differential equations
- image enhancement
- hamilton jacobi
- differential operators
- numerical scheme
- higher order
- numerical algorithms
- diffusion equation
- fourth order
- problems in image processing
- denoising
- curve evolution
- ordinary differential equations
- image quality
- multiresolution
- nonlinear partial differential equations
- regularization method
- scale spaces
- computer vision
- laplace beltrami
- feature extraction
- finite difference method