Subband Channel Selection using TEO for Replay Spoof Detection in Voice Assistants.
Harsh KottaAnkur T. PatilRajul AcharyaHemant A. PatilPublished in: APSIPA (2020)
Keyphrases
- subband
- filter bank
- wavelet transform
- wavelet coefficients
- multiresolution
- image compression
- bit rate
- wavelet decomposition
- high frequency
- frequency domain
- wavelet domain
- feature vectors
- subband decomposition
- discrete wavelet transform
- locally adaptive
- low pass
- subband coding
- wavelet coding
- wavelet packet
- image coding
- perfect reconstruction
- video signals
- reconstruction error
- low frequency
- image quality
- transform coefficients
- wavelet subbands
- spatial domain
- non subsampled contourlet transform
- video coding
- rate distortion