High-frequency Bounds for the Helmholtz Equation Under Parabolic Trapping and Applications in Numerical Analysis.
Simon N. Chandler-WildeEuan A. SpenceAndrew GibbsValery P. SmyshlyaevPublished in: SIAM J. Math. Anal. (2020)
Keyphrases
- numerical analysis
- high frequency
- finite difference
- low frequency
- image enhancement
- visual quality
- high resolution
- wavelet transform
- subband
- wavelet coefficients
- low pass
- hough transform
- discrete wavelet transform
- wavelet domain
- high frequencies
- wavelet decomposition
- numerical solution
- high frequency components
- image quality
- feature selection
- multi resolution analysis
- phase shifting