Tensor Sparse Coding for Region Covariances.
Ravishankar SivalingamDaniel BoleyVassilios MorellasNikolaos PapanikolopoulosPublished in: ECCV (4) (2010)
Keyphrases
- sparse coding
- natural images
- dictionary learning
- sparse representation
- image classification
- linear combination
- higher order
- unsupervised learning
- image representation
- generative model
- input image
- image patches
- sparse codes
- object category recognition
- visual words
- feature space
- dimensionality reduction
- high dimensional
- image regions
- multiscale
- denoising
- small number
- covariance matrix
- pattern recognition
- bayesian networks
- feature extraction
- covariance matrices
- image processing
- data sets