Subband Variance Computation of homoscedastic Additive Noise in Discrete Dyadic Wavelet Transform.
Arianna MencattiniMarcello SalmeriFederica CaselliBerardino SciunziRoberto LojaconoPublished in: Int. J. Wavelets Multiresolution Inf. Process. (2008)
Keyphrases
- additive noise
- subband
- synthesis filters
- filter bank
- spatial domain
- frequency domain
- noisy images
- wavelet transform
- wavelet decomposition
- wavelet coefficients
- wavelet filters
- image compression
- maximum likelihood
- high frequency
- low pass
- multiresolution
- bit rate
- wavelet domain
- discrete wavelet transform
- random variables
- perfect reconstruction
- energy compaction
- feature vectors
- low frequency
- transform coefficients
- reconstruction error
- image coding
- high pass
- wavelet packet
- speech signal
- object recognition
- rate distortion
- multiscale
- image denoising
- shift invariant
- discrete fourier transform
- pattern recognition
- computationally efficient
- feature selection
- translation invariant
- image coder
- frequency band
- feature extraction
- transform domain
- computer vision