Speech denoising based on Group Sparse Representation in the case of Gaussian Noise.
Hongqing LiuShujun LiuYong LiDong LiTrieu-Kien TruongPublished in: DSL (2018)
Keyphrases
- gaussian noise
- denoising
- sparse representation
- piecewise smooth
- noisy images
- dictionary learning
- sparse coding
- image denoising
- noise model
- noise removal
- natural images
- impulse noise
- total variation
- wavelet domain
- image processing
- noise level
- compressed sensing
- image classification
- face recognition
- denoising algorithm
- joint optimization
- noise suppression
- compressive sensing
- image patches
- signal to noise ratio
- image restoration
- signal processing
- error rate
- high dimensional data
- dimensionality reduction
- computer vision
- test images
- image representation
- image features
- pattern recognition
- regularized least squares