Keyphrases
- dictionary learning
- shape descriptors
- sparse representation
- sparse coding
- shape analysis
- d objects
- size functions
- shape matching
- shape retrieval
- shape classification
- shape representation
- shape features
- feature vectors
- open or closed
- viewpoint
- computer vision
- image patches
- linear combination
- natural images
- nearest neighbor
- feature space
- image processing
- feature selection