Exponentially convergent multiscale methods for high frequency heterogeneous Helmholtz equations.

Yifan Chen Thomas Y. Hou Yixuan Wang

Published in: CoRR (2021)

Keyphrases

multi resolution analysis
high frequency
wavelet transform
multiresolution
multiscale
low frequency
image compression
subband
wavelet coefficients
wavelet domain
visual quality
high resolution
discrete wavelet transform
low pass
video sequences
image processing
frequency band
contourlet transform