Multiscale estimates for the condition number of non-harmonic Fourier matrices.
Weilin LiPublished in: CoRR (2023)
Keyphrases
- condition number
- multiscale
- linear algebra
- correlation matrix
- sparse matrices
- condition numbers
- sparse matrix
- interior point methods
- radon transform
- image processing
- regression model
- singular value decomposition
- coefficient matrix
- wavelet transform
- fourier transform
- image representation
- scale space
- natural images
- image reconstruction
- covariance matrix
- power spectrum
- least squares
- convergence rate
- numerical stability
- frequency domain
- image segmentation
- semidefinite programming
- computationally intensive
- convex optimization