Multi-view discriminative and structured dictionary learning with group sparsity for human action recognition.
Zan GaoHua ZhangGuangping XuYanbin XueAlexander G. HauptmannPublished in: Signal Process. (2015)
Keyphrases
- multi view
- group sparsity
- dictionary learning
- sparse coding
- discriminative power
- semi supervised
- sparse representation
- unsupervised learning
- structured sparsity
- d objects
- natural images
- low rank
- generative model
- action recognition
- linear combination
- feature extraction
- image classification
- ground truth
- active learning
- pattern recognition
- feature selection
- image features
- image representation
- visual words
- matrix factorization
- training set
- feature space
- image segmentation