Sparse Approximate Multifrontal Factorization with Butterfly Compression for High Frequency Wave Equations.
Yang LiuPieter GhyselsLisa ClausXiaoye Sherry LiPublished in: CoRR (2020)
Keyphrases
- high frequency
- low frequency
- high resolution
- image compression
- wavelet transform
- visual quality
- wave equation
- compression algorithm
- subband
- wavelet coefficients
- high frequencies
- compression ratio
- data compression
- low pass
- high frequency components
- frequency band
- discrete wavelet transform
- phase shifting
- wavelet filters
- compression scheme
- low rank
- sparse representation
- multiscale
- reconstructed image
- remote sensing
- perceptual quality
- wavelet domain
- multi resolution analysis
- singular value decomposition