Fast Direct Solvers for Integral Equations at Low-Frequency Based on Operator Filtering.
Clément HenryDavide ConsoliAlexandre DélyLyes RahmouniAdrien MerliniFrancesco P. AndriulliPublished in: CoRR (2022)
Keyphrases
- low frequency
- high frequency
- frequency domain
- wavelet transform
- high pass
- low pass
- discrete wavelet transform
- subband
- wavelet analysis
- wavelet coefficients
- original images
- frequency band
- high frequency components
- fusion rules
- electromagnetic fields
- dct coefficients
- image compression
- image processing
- numerical solution
- filter bank
- image reconstruction
- sat solvers
- low and high frequency