A split-and-merge dictionary learning algorithm for sparse representation: Application to image denoising.
Subhadip MukherjeeChandra Sekhar SeelamantulaPublished in: DSP (2014)
Keyphrases
- sparse representation
- image denoising
- dictionary learning
- learning algorithm
- natural images
- denoising
- sparse coding
- noisy images
- image patches
- face recognition
- joint optimization
- total variation
- image classification
- compressive sensing
- image processing
- signal processing
- piecewise smooth
- machine learning
- wavelet coefficients
- high dimensional data
- wavelet domain
- dimensionality reduction
- data sets
- sparse codes
- image representation
- pattern recognition
- multiscale