An efficient approach for designing nearly perfect-reconstruction cosine-modulated and modified DFT filter banks.
Tapio SaramäkiRobert BregovicPublished in: ICASSP (2001)
Keyphrases
- perfect reconstruction
- filter bank
- frequency domain
- discrete fourier transform
- subband
- image coding
- wavelet transform
- multiresolution
- wavelet filter banks
- discrete cosine transform
- multiscale
- signal processing
- low pass
- fourier transform
- vanishing moments
- image coding scheme
- spatial domain
- feature vectors
- lifting scheme
- finite impulse response
- reconstruction error
- filter coefficients
- symmetric extension
- wavelet packet
- high frequency
- computationally efficient
- image compression
- wavelet filters
- lossless compression
- wavelet basis
- denoising
- wavelet decomposition
- compactly supported
- building blocks