Anomaly detection via 3D-HOF and fast double sparse representation.
Ziping ZhuJingjing WangNenghai YuPublished in: ICIP (2016)
Keyphrases
- sparse representation
- anomaly detection
- bag of words
- action recognition
- image classification
- video classification
- image representation
- intrusion detection
- dictionary learning
- sparse coding
- histogram of oriented gradients
- visual words
- face recognition
- image patches
- high dimensional data
- human detection
- object tracking
- n gram
- computer vision
- text classification
- visual features
- subspace learning
- multiscale
- intrusion detection system
- detect anomalies
- signal processing
- feature extraction
- neural network
- activity recognition
- unsupervised learning
- discriminative power
- image retrieval
- data sets
- dimensionality reduction
- pattern recognition