Riemannian Geometry of Symmetric Positive Definite Matrices via Cholesky Decomposition.
Zhenhua LinPublished in: SIAM J. Matrix Anal. Appl. (2019)
Keyphrases
- symmetric positive definite matrices
- dictionary learning
- valued data
- matrix valued
- sparse coding
- vector space
- sparse representation
- riemannian manifolds
- log euclidean
- riemannian metric
- dw mri
- geometric structure
- geodesic distance
- vector valued
- covariance matrices
- dt mri
- wavelet packet
- diffusion tensor
- affine invariant
- tensor field
- image classification
- face recognition
- euclidean space
- order statistics
- parameter space
- covariance matrix
- shortest path
- linear combination
- distance measure