Action recognition using global spatio-temporal features derived from sparse representations.
Guruprasad SomasundaramAnoop CherianVassilios MorellasNikolaos PapanikolopoulosPublished in: Comput. Vis. Image Underst. (2014)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- joint optimization
- image classification
- compressive sensing
- random projections
- negative matrix factorization
- image representation
- face recognition
- regularized least squares
- signal processing
- high dimensional data
- sparse reconstruction
- image patches
- object tracking
- compressed sensing
- multiscale
- manifold learning
- test images
- linear combination
- machine learning