Low-rank structured sparse representation and reduced dictionary learning-based abnormity detection.
Wenbin XieHong YinMeini WangYan ShaoBosi YuPublished in: IET Comput. Vis. (2019)
Keyphrases
- dictionary learning
- sparse representation
- low rank
- group sparsity
- high dimensional data
- sparse coding
- low rank matrix recovery
- sparsity constraints
- linear combination
- matrix factorization
- missing data
- image classification
- singular value decomposition
- face recognition
- low rank matrix
- convex optimization
- image patches
- object detection
- dimensionality reduction
- reconstruction error
- semi supervised
- negative matrix factorization
- low dimensional
- compressive sensing
- data sets
- random projections
- compressed sensing
- matrix completion
- signal processing
- nearest neighbor
- test images
- high order
- sparse codes
- high dimensional
- collaborative filtering
- input image