Supervised learning of bag-of-features shape descriptors using sparse coding.
Roee LitmanAlexander M. BronsteinMichael M. BronsteinUmberto CastellaniPublished in: Comput. Graph. Forum (2014)
Keyphrases
- sparse coding
- shape descriptors
- bag of features
- supervised learning
- image classification
- visual words
- unsupervised learning
- image representation
- feature descriptors
- object recognition
- d objects
- shape analysis
- bag of words
- sparse representation
- shape features
- visual features
- shape matching
- natural images
- active learning
- action recognition
- image features
- machine learning
- feature vectors
- training data
- linear combination
- semi supervised
- multiscale
- training set
- feature space
- image retrieval
- spatial information
- mixture model
- co occurrence
- pairwise
- feature extraction
- higher order
- pattern recognition
- object categories
- viewpoint