Optimal Error Estimate of the Extended-WKB Approximation to the High Frequency Wave-Type Equation in the Semi-classical Regime.
Chunxiong ZhengJiashun HuPublished in: J. Sci. Comput. (2020)
Keyphrases
- high frequency
- low frequency
- error tolerance
- estimation error
- error bounds
- visual quality
- wavelet transform
- subband
- high resolution
- high frequencies
- wavelet coefficients
- low pass
- wavelet decomposition
- high frequency components
- frequency band
- expected error
- discrete wavelet transform
- multiresolution
- image analysis
- wave equation
- wavelet domain
- image compression
- motion estimation