Sparse representation of terrains for procedural modeling.
Eric GuérinJulie DigneEric GalinAdrien PeytaviePublished in: Comput. Graph. Forum (2016)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- compressive sensing
- compressed sensing
- image classification
- joint optimization
- face recognition
- reconstruction error
- image patches
- signal processing
- random projections
- object tracking
- piecewise smooth
- test images
- dimensionality reduction
- regularized least squares
- sparse approximations
- image representation
- negative matrix factorization
- high dimensional data
- basis vectors
- expectation maximization
- norm minimization
- sparsity constraints
- sparse learning
- sparse reconstruction
- image retrieval