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Decompositions of high-frequency Helmholtz solutions via functional calculus, and application to the finite element method.
David Lafontaine
Euan A. Spence
Jared Wunsch
Published in:
CoRR (2021)
Keyphrases
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high frequency
low frequency
high resolution
visual quality
wavelet transform
subband
discrete wavelet transform
high frequencies
wavelet coefficients
image processing
multiscale
multiresolution
wavelet decomposition
frequency band
blocking artifacts
low bit rate coding