Robust feature extraction based on an asymmetric level-dependent auditory filterbank and a subband spectrum enhancement technique.
Md. Jahangir AlamPatrick KennyDouglas D. O'ShaughnessyPublished in: Digit. Signal Process. (2014)
Keyphrases
- subband
- filter bank
- wavelet transform
- feature vectors
- feature extraction
- frequency domain
- multiresolution
- image coding
- image compression
- wavelet coefficients
- signal processing
- subband coding
- wavelet decomposition
- high frequency
- image processing
- bit rate
- discrete wavelet transform
- wavelet packet
- multiscale
- perfect reconstruction
- locally adaptive
- computationally efficient
- reconstruction error
- wavelet domain
- low frequency
- image coding scheme
- frequency band
- low pass
- spatial domain
- wavelet basis
- wavelet filters
- feature space
- lifting scheme
- coding gain