Action Recognition in Video Using Sparse Coding and Relative Features.
Analí AlfaroDomingo MeryAlvaro SotoPublished in: CoRR (2016)
Keyphrases
- action recognition
- sparse coding
- human actions
- action classification
- space time interest points
- action detection
- dictionary learning
- sparse representation
- mid level
- bag of features
- feature space
- recognizing human actions
- bag of words
- computer vision
- human detection
- natural images
- image classification
- human activities
- motion history images
- prior knowledge
- key frames
- global features
- linear combination
- generative model
- video sequences
- image features
- video data
- visual words
- unsupervised learning
- co occurrence
- feature vectors
- spatio temporal
- training data
- keypoints
- human motion
- supervised learning
- active learning
- image retrieval
- feature extraction
- image sequences
- image processing