SNR-dependent compression of enhanced Mel sub-band energies for compensation of noise effects on MFCC features.
Babak NasersharifAhmad AkbariPublished in: Pattern Recognit. Lett. (2007)
Keyphrases
- feature vectors
- subband
- signal to noise ratio
- feature extraction
- low frequency
- feature set
- image compression
- filter bank
- multiresolution
- high frequency
- frequency domain
- coding gain
- wavelet domain
- wavelet transform
- locally adaptive
- wavelet coefficients
- compression algorithm
- gabor filters
- image quality
- wavelet subbands
- noise reduction
- compression ratio
- feature space
- discrete wavelet transform
- perfect reconstruction
- mel frequency cepstral coefficients
- computer vision
- cepstral coefficients
- lossy compression
- low pass
- wavelet decomposition
- gaussian mixture model
- speech recognition
- image data
- high quality