Blind Speech Extraction Based on Rank-Constrained Spatial Covariance Matrix Estimation With Multivariate Generalized Gaussian Distribution.
Yuki KuboNorihiro TakamuneDaichi KitamuraHiroshi SaruwatariPublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2020)
Keyphrases
- covariance matrix
- multivariate normal
- multivariate gaussian
- estimation error
- covariance matrices
- generalized gaussian distribution
- principal component analysis
- maximum likelihood estimation
- sample size
- spatial information
- geometrical interpretation
- correlation matrix
- objective function
- multiresolution
- least squares
- lower bound
- image segmentation
- image normalization
- texture image retrieval
- pattern recognition