On the Reconstruction Risk of Convolutional Sparse Dictionary Learning.
Shashank SinghBarnabás PóczosJian MaPublished in: CoRR (2017)
Keyphrases
- dictionary learning
- sparse coding
- sparse representation
- reconstruction error
- single image super resolution
- image super resolution
- compressed sensing
- sparsity constraints
- natural images
- image classification
- compressive sensing
- unsupervised learning
- group sparsity
- linear combination
- sparse codes
- image representation
- object category recognition
- generative model
- image patches
- feature space
- high dimensional
- signal processing
- signal recovery
- random projections
- data sets
- face recognition
- sparse representation based classification
- visual words
- image reconstruction
- high resolution
- higher order
- object recognition
- multiscale