An extended displacement operator for weakly structured covariance matrices.
François DesbouvriesClaude GuéguenPublished in: ICASSP (1992)
Keyphrases
- covariance matrices
- covariance matrix
- maximum likelihood
- gaussian mixture model
- distance measure
- vector space
- gaussian distribution
- multivariate normal
- gaussian mixture
- principal component analysis
- feature vectors
- linear classifiers
- sample size
- model selection
- optical flow
- image processing
- riemannian manifolds
- learning algorithm