Efficient Highly Over-Complete Sparse Coding Using a Mixture Model.
Jianchao YangKai YuThomas S. HuangPublished in: ECCV (5) (2010)
Keyphrases
- mixture model
- sparse coding
- generative model
- unsupervised learning
- dictionary learning
- sparse representation
- probabilistic model
- em algorithm
- gaussian mixture model
- natural images
- density estimation
- image classification
- model selection
- maximum likelihood
- linear combination
- image representation
- language model
- visual words
- learning process
- feature space
- data sets
- higher order
- computer vision