A perceptually motivated stationary wavelet packet filter-bank utilizing improved spectral over-subtraction algorithm for enhancing speech in non-stationary environments.
Navneet UpadhyayAbhijit KarmakarPublished in: IHCI (2012)
Keyphrases
- wavelet packet
- filter bank
- wavelet packet transform
- non stationary
- image coding
- subband
- denoising
- computational complexity
- computationally efficient
- space frequency quantization
- reconstruction error
- wavelet transform
- tree structure
- frequency domain
- quadtree
- multiresolution
- pattern recognition
- video sequences
- neural network