An Gaussian-Mixture Hidden Markov Models for Action Recognition Based on Key Frame.
Jinhong LiTingsheng LeiFengquan ZhangPublished in: CISP-BMEI (2018)
Keyphrases
- hidden markov models
- action recognition
- gaussian mixture
- key frames
- video retrieval
- feature vectors
- human actions
- activity recognition
- bag of words
- probability density function
- video data
- gaussian mixture model
- visual features
- covariance matrix
- video sequences
- em algorithm
- video content
- closed form
- expectation maximization
- mixture model
- computer vision
- video frames
- density estimation
- information retrieval
- action primitives
- event detection
- conditional random fields
- multiscale
- generative model
- maximum likelihood
- probability distribution