Sparse representation of whole-brain fMRI signals for identification of functional networks.
Jinglei LvXi JiangXiang LiDajiang ZhuHanbo ChenTuo ZhangShu ZhangXintao HuJunwei HanHeng HuangJing ZhangLei GuoTianming LiuPublished in: Medical Image Anal. (2015)
Keyphrases
- sparse representation
- signal processing
- dictionary learning
- sparse coding
- blind source separation
- face recognition
- compressive sensing
- compressed sensing
- brain activity
- image classification
- data analysis
- negative matrix factorization
- reconstruction error
- joint optimization
- regularized least squares
- random projections
- sparse reconstruction
- piecewise smooth
- sparse approximations
- sparse signal representation
- high dimensional data
- dimensionality reduction
- image patches
- test images
- human brain
- functional magnetic resonance imaging
- object tracking
- image representation
- norm minimization
- sparsity constraints
- sparse coefficients
- independent component analysis
- image segmentation
- decision trees
- image processing