A classification-and-reconstruction approach for a single image super-resolution by a sparse representation.
YingYing FanMasayuki TanakaMasatoshi OkutomiPublished in: Digital Photography (2014)
Keyphrases
- single image super resolution
- dictionary learning
- sparse representation
- sparse coding
- image classification
- compressive sensing
- image patches
- compressed sensing
- image super resolution
- super resolution
- image representation
- face recognition
- unsupervised learning
- low resolution
- high resolution images
- natural images
- high dimensional data
- image reconstruction
- test images
- generative model
- high resolution
- machine learning
- dimensionality reduction
- supervised learning
- image features
- feature vectors
- random projections
- multiscale
- feature extraction
- data mining
- small number
- high dimensional
- feature space
- computer vision