Multigrid-based 'shifted-Laplacian' preconditioning for the time-harmonic elastic wave equation.
Gabrio RizzutiWim A. MulderPublished in: J. Comput. Phys. (2016)
Keyphrases
- wave equation
- inverse problems
- hamilton jacobi
- multiresolution
- edge preserving
- image reconstruction
- partial differential equations
- image analysis
- multiscale
- early vision
- boundary conditions
- edge detection
- global optimization
- coarse to fine
- high order
- computer vision
- primal dual
- image processing
- anisotropic diffusion
- computationally expensive
- numerical methods
- d objects
- linear systems
- flow field
- dynamical systems