Video Covariance Matrix Logarithm for Human Action Recognition in Videos.
Piotr Tadeusz BilinskiFrançois BrémondPublished in: IJCAI (2015)
Keyphrases
- covariance matrix
- covariance matrices
- principal component analysis
- mahalanobis distance
- video sequences
- gaussian mixture
- action recognition in videos
- sample size
- human actions
- correlation matrix
- eigenvalues and eigenvectors
- eigendecomposition
- human activities
- pseudo inverse
- action recognition
- positive definite
- space time
- multivariate gaussian
- geometrical interpretation
- data mining
- class conditional densities
- symmetric matrix
- estimation error
- low level
- feature extraction