Deriving structures of FFT based filter banks by signal flow graphs.
Xiumei LiXianpeng WangRonggang QiGuoan BiPublished in: Digit. Signal Process. (2021)
Keyphrases
- filter bank
- frequency domain
- flow graphs
- perfect reconstruction
- signal processing
- subband
- wavelet packet
- image coding
- fast fourier transform
- fourier transform
- input signals
- flow graph
- spatial domain
- multiscale
- low frequency
- low pass
- fir filters
- multiresolution
- wavelet transform
- lifting scheme
- spectral analysis
- high frequency
- finite impulse response
- discrete cosine transform
- image processing
- linear filters
- filter coefficients
- denoising
- decision table
- wavelet domain
- pattern recognition
- impulse response
- face recognition
- fourier domain
- feature extraction
- discrete fourier transform
- bit rate
- random walk
- wavelet filters
- feature vectors
- data mining
- wavelet decomposition
- image data
- rough sets
- transform coefficients
- filter responses
- discrete wavelet transform
- reconstruction error