Deformation-Invariant Sparse Coding for Modeling Spatial Variability of Functional Patterns in the Brain.
George H. ChenEvelina FedorenkoNancy KanwisherPolina GollandPublished in: MLINI (2011)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- natural images
- image classification
- linear combination
- generative model
- brain regions
- inter subject
- image representation
- cortical folding
- spatial pyramid matching
- unsupervised learning
- discriminative power
- visual words
- human brain
- image patches
- spatial information
- high dimensional
- deformation field
- image processing
- shape variations
- object recognition
- multiscale