Closed-form MMSE estimation for signal denoising under sparse representation modeling over a unitary dictionary.
Matan ProtterIrad YavnehMichael EladPublished in: IEEE Trans. Signal Process. (2010)
Keyphrases
- sparse representation
- closed form
- denoising
- compressive sensing
- signal processing
- dictionary learning
- closed form solutions
- frequency domain
- sparse coding
- compressed sensing
- face recognition
- image classification
- joint optimization
- hyperparameters
- random projections
- point correspondences
- image processing
- sparse approximations
- image denoising
- image patches
- high dimensional data
- dimensionality reduction
- natural images
- noisy images
- total variation
- denoising algorithm
- sparse coefficients
- image representation
- sparse signal representation
- wavelet domain
- spatial domain
- image sequences
- gaussian process
- multiscale
- computer vision
- quadratic cost function
- data sets