A Fast Butterfly-compressed Hadamard-Babich Integrator for High-Frequency Helmholtz Equations in Inhomogeneous Media with Arbitrary Sources.
Yang LiuJian SongRobert BurridgeJianliang QianPublished in: CoRR (2022)
Keyphrases
- high frequency
- low frequency
- high resolution
- visual quality
- wavelet transform
- multimedia
- subband
- high frequencies
- low pass
- wavelet coefficients
- wavelet domain
- multi resolution analysis
- wavelet decomposition
- blocking artifacts
- discrete wavelet transform
- compressed domain
- transform coefficients
- high frequency components
- multiresolution
- feature extraction
- image processing
- low and high frequency