A unified framework for filterbank and time-frequency basis vectors in ASR frontends.
Xiaoyu LiuStephen A. ZahorianPublished in: ICASSP (2015)
Keyphrases
- basis vectors
- filter bank
- signal processing
- frequency domain
- sparse representation
- linear combination
- feature space
- subband
- sparse coding
- wavelet transform
- nonnegative matrix factorization
- multiscale
- multiresolution
- original data
- basis functions
- training samples
- feature extraction
- natural images
- speech recognition
- low dimensional
- spatial domain
- computationally efficient
- feature vectors
- pattern recognition
- wavelet bases
- data sets
- image compression
- image classification
- denoising
- image processing
- machine learning
- wavelet coefficients
- small number
- object recognition
- data matrix