Sub-band spectral variance feature for noise robust ASR.
Hari Krishna MagantiSilvia ZanonMarco MatassoniAlessio BruttiPublished in: EUSIPCO (2011)
Keyphrases
- subband
- noisy environments
- low frequency
- feature vectors
- transformed image
- high frequency
- multiresolution
- image compression
- wavelet transform
- discrete wavelet transform
- wavelet coefficients
- filter bank
- frequency domain
- high pass
- low pass
- bit rate
- wavelet decomposition
- locally adaptive
- feature descriptors
- computer vision
- geometric distortions
- automatic speech recognition
- computationally efficient
- frequency band
- texture classification
- wavelet domain
- noise reduction
- bandpass
- perfect reconstruction
- texture analysis