Structured sparse representation for human action recognition.
Fatemeh MoayediZohreh AzimifarReza BoostaniPublished in: Neurocomputing (2015)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- image patches
- compressive sensing
- compressed sensing
- signal processing
- action recognition
- sparse approximations
- object tracking
- regularized least squares
- random projections
- reconstruction error
- piecewise smooth
- basis vectors
- dimensionality reduction
- high dimensional data
- image representation
- test images
- negative matrix factorization
- sparsity constraints
- sparse reconstruction
- pattern recognition
- joint optimization
- machine learning
- intrinsic image decomposition
- generative model
- image features
- data analysis
- decision trees