Approximate Inverse Circulant-plus-Diagonal Preconditioners for Toeplitz-plus-Diagonal Matrices.
Michael K. NgJianyu PanPublished in: SIAM J. Sci. Comput. (2010)
Keyphrases
- symmetric positive definite
- correlation matrix
- covariance matrix
- least squares
- iterative methods
- systems of linear equations
- image restoration
- distribution function
- image processing
- fourier transform
- bundle adjustment
- condition number
- positive definite
- riemannian manifolds
- edge preserving
- data sets
- computationally expensive
- higher order
- computer vision
- neural network