Keyphrases
- image patches
- weak classifiers
- natural images
- weak learners
- object class
- low resolution
- feature vectors
- sparse representation
- boosting algorithms
- ensemble classifier
- super resolution
- test images
- feature selection
- sparse coding
- ensemble learning
- higher order
- image segmentation
- natural image patches
- orientation histogram
- repetitive patterns
- small image patches
- unsupervised learning
- neural network
- active learning
- pattern recognition
- training data
- learning algorithm
- signal processing
- feature space
- image super resolution
- feature extraction
- decision trees
- machine learning