Keyphrases
- action recognition
- subspace learning
- static images
- dimensionality reduction
- human activities
- human actions
- bag of words
- activity recognition
- data representation
- computer vision
- action classification
- semi supervised
- motion history images
- human object interactions
- principal component analysis
- manifold learning
- face recognition
- recognizing human actions
- recognition of human actions
- sparse coding
- body parts
- human pose
- sparse representation
- low dimensional
- learning algorithm
- machine learning
- foreground segmentation
- support vector machine
- feature extraction