Wavelet Packet Transform Based Minimum Risk Denoising Algorithm for Astronomical Spectra.
Jingchang PanQiang GuoBin JiangZhenping YiPublished in: FSKD (4) (2007)
Keyphrases
- wavelet packet
- minimum risk
- denoising algorithm
- denoising
- image denoising
- natural images
- noisy images
- wavelet packet transform
- image processing
- wavelet domain
- frequency domain
- minimax regret
- choquet integral
- filter bank
- subband
- quadtree
- wavelet coefficients
- hyperspectral
- image restoration
- wavelet transform
- motion estimation
- multiscale
- high quality