Deep Hashing and Sparse Representation of Abnormal Events Detection.
Mariem GnoumaRidha EjbaliMourad ZaiedPublished in: Comput. J. (2024)
Keyphrases
- sparse representation
- abnormal events
- random projections
- dictionary learning
- abnormal behavior
- sparse coding
- abnormal event detection
- compressive sensing
- image classification
- joint optimization
- compressed sensing
- signal processing
- reconstruction error
- face recognition
- image patches
- regularized least squares
- dimensionality reduction
- high dimensional data
- anomaly detection
- sparse reconstruction
- sparse approximations
- object tracking
- image representation
- sparse coefficients
- data sets
- computer vision
- norm minimization
- semi supervised
- negative matrix factorization
- test images
- similarity search