A systematic technique for designing prototype filters for perfect reconstruction cosine modulated and modified DFT filter banks.
R. BegovicTapio SaramäkiPublished in: ISCAS (2) (2001)
Keyphrases
- perfect reconstruction
- filter bank
- frequency domain
- discrete fourier transform
- subband
- image coding
- wavelet transform
- filter coefficients
- wavelet filter banks
- finite impulse response
- discrete cosine transform
- multiresolution
- vanishing moments
- lifting scheme
- multiscale
- fourier transform
- symmetric extension
- feature vectors
- signal processing
- image coding scheme
- spatial domain
- low pass
- wavelet packet
- wavelet filters
- computationally efficient
- lossless compression
- compactly supported
- computer vision
- basis functions
- filter responses
- wavelet bases
- building blocks
- high frequency
- synthesis filters
- feature selection
- low frequency