Noise Estimation Using High Frequency Regions for Spectral Subtraction.
Junpei YamauchiTetsuya ShimamuraPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2002)
Keyphrases
- high frequency
- noise estimation
- low frequency
- noise level
- noisy images
- visual quality
- high resolution
- wavelet transform
- frequency band
- denoising
- wavelet coefficients
- subband
- noise model
- wavelet decomposition
- wavelet domain
- additive noise
- signal processing
- multiscale
- image denoising
- input image
- pattern recognition
- similarity measure
- speech signal
- speech recognition
- image compression