Lip event detection using oriented histograms of regional optical flow and low rank affinity pursuit.
Xin LiuYiu-ming CheungYuan Yan TangPublished in: Comput. Vis. Image Underst. (2016)
Keyphrases
- event detection
- low rank
- optical flow
- convex optimization
- singular value decomposition
- missing data
- matrix completion
- linear combination
- matrix factorization
- low rank matrix
- activity recognition
- video event detection
- semi supervised
- rank minimization
- motion features
- high order
- image sequences
- high dimensional data
- least squares
- pairwise
- video surveillance
- motion model
- trace norm
- computer vision
- data matrix
- motion estimation
- higher order
- machine learning
- active database management systems
- object detection
- small number
- moving objects
- decision trees