Sparse representation of step functions on manifolds.
Simone MelziPublished in: Comput. Graph. (2019)
Keyphrases
- sparse representation
- manifold learning
- dictionary learning
- sparse coding
- image classification
- compressive sensing
- high dimensional data
- image patches
- face recognition
- dimensionality reduction
- sparse approximations
- negative matrix factorization
- reconstruction error
- compressed sensing
- object tracking
- joint optimization
- image representation
- test images
- low dimensional
- regularized least squares
- sparse reconstruction
- piecewise smooth
- signal processing
- computer vision
- random projections
- basis functions
- machine learning
- data sets
- image data
- training data
- decision trees
- norm minimization
- feature selection