Sparse coding based motion attention for abnormal event detection.
Xun TangShengping ZhangHongxun YaoPublished in: ICIP (2013)
Keyphrases
- sparse coding
- abnormal event detection
- dictionary learning
- sparse representation
- natural images
- linear combination
- image classification
- abnormal events
- unsupervised learning
- generative model
- image representation
- single image super resolution
- image sequences
- sparse codes
- image patches
- visual words
- object category recognition
- motion estimation
- moving objects
- feature space
- high dimensional
- bag of words
- principal component analysis
- multiscale
- high quality
- computer vision
- optical flow