Manifold-constrained coding and sparse representation for human action recognition.
Xiangrong ZhangYang YangLicheng JiaoFeng DongPublished in: Pattern Recognit. (2013)
Keyphrases
- sparse representation
- manifold learning
- dictionary learning
- sparse coding
- image classification
- face recognition
- image patches
- dimensionality reduction
- compressive sensing
- signal processing
- joint optimization
- random projections
- compressed sensing
- low dimensional
- high dimensional data
- action recognition
- subspace learning
- image representation
- reconstruction error
- object tracking
- negative matrix factorization
- lower dimensional
- machine learning
- sparse codes
- sparse approximations
- sparse reconstruction
- regularized least squares
- parameter space
- test images
- high dimensional
- principal component analysis
- video sequences
- sparse coefficients
- multiscale