Using Block Coordinate Descent to Learn Sparse Coding Dictionaries with a Matrix Norm Update.
Bradley M. WhitakerDavid V. AndersonPublished in: ICASSP (2018)
Keyphrases
- sparse coding
- sparse representation
- sparse codes
- dictionary learning
- single image super resolution
- norm minimization
- image classification
- image patches
- natural images
- sparse learning
- generative model
- linear combination
- sparsity inducing
- image representation
- discriminative dictionary
- face recognition
- feature space
- unsupervised learning
- singular value decomposition
- signal processing
- dimensionality reduction
- compressive sensing
- negative matrix factorization
- object category recognition
- high dimensional
- visual words
- low resolution
- denoising
- small number
- principal component analysis
- higher order
- pattern recognition
- data sets