Keyphrases
- sparse representation
- shape model
- dictionary learning
- sparse coding
- level set segmentation
- compressive sensing
- image patches
- joint optimization
- shape prior
- signal processing
- face recognition
- test images
- energy function
- image classification
- dimensionality reduction
- statistical shape model
- object tracking
- high dimensional data
- image representation
- shape variations
- image processing
- object recognition
- pattern recognition
- feature extraction
- norm minimization