Crowd Abnormal Event Detection Based on Sparse Coding.
Chunsheng GuoHanwen LinZhen HeXiaohu ShuXuguang ZhangPublished in: Int. J. Humanoid Robotics (2019)
Keyphrases
- sparse coding
- abnormal event detection
- abnormal events
- sparse representation
- natural images
- dictionary learning
- linear combination
- unsupervised learning
- image classification
- generative model
- daily life
- image representation
- discriminative power
- feature space
- image patches
- group sparsity
- single image super resolution
- sparse codes
- person re identification
- multiscale
- face recognition
- higher order
- object category recognition
- object recognition
- visual words
- data sets
- prior knowledge
- knn
- image processing