A Kernel Gabor-Based Weighted Region Covariance Matrix for Face Recognition.
Huafeng QinLan QinLian XueYantao LiPublished in: Sensors (2012)
Keyphrases
- covariance matrix
- face recognition
- positive definite
- principal component analysis
- covariance matrices
- sample size
- face images
- eigendecomposition
- feature space
- gaussian mixture
- pseudo inverse
- mahalanobis distance
- laplacian matrix
- feature extraction
- multivariate gaussian
- computer vision
- linear discriminant analysis
- kernel function
- principal components
- correlation matrix
- objective function
- eigenvalues and eigenvectors
- kernel methods
- reproducing kernel hilbert space
- dimensionality reduction
- support vector
- riemannian manifolds
- graph kernels
- distance measure
- upper bound
- geometrical interpretation