Keyphrases
- sparse representation
- foreground segmentation
- object tracking
- subspace learning
- sparse coding
- background subtraction
- foreground objects
- face recognition
- image classification
- dimensionality reduction
- manifold learning
- random projections
- edge information
- image patches
- high dimensional data
- video surveillance
- test images
- image representation
- shadow detection
- signal processing
- background model
- computer vision
- appearance model
- moving objects
- object recognition
- video sequences
- machine learning
- principal component analysis
- high dimensional