Sparse Representation of Complex-Valued fMRI Data Based on Hard Thresholding of Spatial Source Phase.
Jia-Yang SongMiao-Ying QiDun-Pei LvChao-Ying ZhangQiu-Hua LinVince D. CalhounPublished in: ICASSP (2021)
Keyphrases
- sparse representation
- complex valued
- real valued
- sparse coding
- blind source separation
- recurrent neural networks
- image classification
- face recognition
- linear equations
- negative matrix factorization
- signal processing
- image patches
- hard thresholding
- multi valued
- dimensionality reduction
- high dimensional data
- image representation
- activation function
- non stationary