Speech enhancement using sparse dictionary learning in wavelet packet transform domain.
Samira MavaddatySeyed Mohammad AhadiSanaz SeyedinPublished in: Comput. Speech Lang. (2017)
Keyphrases
- dictionary learning
- transform domain
- wavelet packet
- sparse representation
- sparse coding
- spatial domain
- filter bank
- denoising
- subband
- frequency domain
- wavelet domain
- wavelet transform
- wavelet decomposition
- quadtree
- image classification
- signal processing
- image coding
- linear combination
- non stationary
- multiresolution
- compressive sensing
- image representation
- natural images
- multiscale
- face recognition
- image denoising
- signal to noise ratio
- high frequency
- generative model
- bayesian networks
- high quality
- image processing