Positive Sparse Signal Denoising: What Does a CNN Learn?
Abdullah H. Al-ShabiliIvan W. SelesnickPublished in: IEEE Signal Process. Lett. (2022)
Keyphrases
- denoising
- basis pursuit
- frequency domain
- wavelet packet
- compressive sensing
- image denoising
- wavelet based denoising
- denoising methods
- total variation
- signal recovery
- additive gaussian noise
- noisy images
- signal processing
- image processing
- natural images
- signal reconstruction
- wavelet packet transform
- wiener filter
- original signal
- cellular neural networks
- wavelet domain
- high dimensional
- hard thresholding
- edge detection
- denoising algorithm
- sparse data
- noise removal
- soft threshold
- convolutional neural network
- multiscale
- sparse representation
- least squares
- nonlinear filtering
- wavelet denoising
- compressed sensing
- compressive sampling
- wavelet analysis
- neural network