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