Design of critically subsampled DFT filter-banks with allpass polyphase filters and near-perfect reconstruction.
Heinrich W. LöllmannPeter VaryPublished in: ICASSP (2009)
Keyphrases
- filter bank
- infinite impulse response
- perfect reconstruction
- finite impulse response
- frequency domain
- fir filters
- image coding
- reconstruction error
- optimal filter
- subband
- wavelet filters
- multiscale
- multiresolution
- discrete cosine transform
- quadrature mirror
- filter coefficients
- filter responses
- discrete fourier transform
- low pass
- filter design
- wavelet packet
- signal processing
- adaptive filtering
- lifting scheme
- digital filters
- wavelet bases
- lapped transforms
- image reconstruction
- computationally efficient
- building blocks
- edge detection
- image processing