Keyphrases
- multi layer
- sparse representation
- image synthesis
- dictionary learning
- computer graphics
- face recognition
- sparse coding
- face images
- image classification
- human faces
- neural network
- neural nets
- image representation
- face sketch
- signal processing
- object tracking
- high dimensional data
- dimensionality reduction
- computer vision
- image patches
- image processing
- test images
- face detection
- illumination conditions
- object detection
- active learning
- pattern recognition
- sparse representation based classification