A Hierarchical Bag-of-Words Model Based on Local Space-Time Features for Human Action Recognition.
Jiangwei WuDaobing ZhouGuoqiang XiaoPublished in: ICITCS (2013)
Keyphrases
- space time
- bag of words
- action recognition
- human actions
- textual features
- image classification
- text classification
- visual words
- spatio temporal
- image representation
- image features
- n gram
- bag of words models
- text classification tasks
- video sequences
- spatial pyramid matching
- feature extraction
- co occurrence
- feature set
- document representation
- keypoints
- visual features
- activity recognition
- object retrieval
- low level