Wavelet based ILU preconditioners for the numerical solution by PUFEM of high frequency elastic wave scattering.
A. El-KacimiOmar LaghrouchePublished in: J. Comput. Phys. (2011)
Keyphrases
- numerical solution
- high frequency
- wave equation
- wavelet transform
- multi resolution analysis
- linear systems
- wavelet domain
- low frequency
- wavelet transformation
- multiresolution
- subband
- wavelet coefficients
- subband decomposition
- differential equations
- partial differential equations
- image compression
- high resolution
- finite difference
- multiscale
- finite element
- dynamical systems
- discrete wavelet transform
- image restoration
- finite element method
- exact solution
- sufficient conditions
- low pass
- frequency band
- image sequences
- filter bank
- frequency domain
- curve evolution
- numerical methods
- high frequency components
- computer vision
- feature extraction