Keyphrases
- image super resolution
- training data
- low resolution
- dictionary learning
- super resolution
- facial images
- training examples
- face images
- supervised learning
- learning algorithm
- face recognition
- image registration
- facial expressions
- decision trees
- sparse representation
- low resolution images
- data sets
- high resolution
- training set
- edge preserving
- image patches
- prior knowledge
- human faces
- kernel regression
- high resolution images
- image processing
- object recognition
- sparse coding
- maximum a posteriori
- image analysis