Abnormal Activity Detection Using Spatio-Temporal Feature and Laplacian Sparse Representation.
Yu ZhaoYu QiaoJie YangNikola K. KasabovPublished in: ICONIP (4) (2015)
Keyphrases
- sparse representation
- sparse coding
- spatio temporal
- dictionary learning
- signal processing
- face recognition
- image classification
- compressed sensing
- compressive sensing
- joint optimization
- random projections
- regularized least squares
- natural images
- image patches
- image representation
- dimensionality reduction
- sparse coefficients
- image sequences
- test images
- high dimensional data
- object detection
- image features
- data sets
- linear combination
- generative model