An Improving EFA for Clutter Suppression by Using the Persymmetric Covariance Matrix Estimation.
Yan ZhouLin WangXiaoxuan ChenCai WenBo JiangDingyi FangPublished in: Circuits Syst. Signal Process. (2018)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- multivariate gaussian
- positive definite
- sample size
- principal component analysis
- mahalanobis distance
- geometrical interpretation
- eigenvalues and eigenvectors
- maximum likelihood estimation
- gaussian mixture
- pseudo inverse
- eigendecomposition
- objective function
- correlation matrix
- multivariate normal
- probability distribution
- transformation matrix
- density estimation
- simulated annealing
- symmetric matrix
- face recognition
- class conditional densities
- image processing