Consistent Sparse Representation for Abnormal Event Detection.
Zhong ZhangShuang LiuZhiwei ZhangPublished in: IEICE Trans. Inf. Syst. (2015)
Keyphrases
- sparse representation
- abnormal event detection
- abnormal events
- dictionary learning
- sparse coding
- image classification
- image patches
- compressive sensing
- test images
- reconstruction error
- compressed sensing
- face recognition
- piecewise smooth
- negative matrix factorization
- image representation
- random projections
- signal processing
- dimensionality reduction
- joint optimization
- neural network
- high dimensional data
- regularized least squares
- sparse coefficients
- sparse reconstruction
- daily life
- pattern recognition
- sparse approximations
- computer vision
- sparse learning
- sparsity constraints
- feature extraction
- small number