Guaranteed lower bounds of the smallest eigenvalues of elliptic differential operators.
Yuri A. KuznetsovSergey I. RepinPublished in: J. Num. Math. (2013)
Keyphrases
- differential operators
- lower bound
- partial differential equations
- boundary value problem
- vector field
- multiscale
- objective function
- image denoising
- covariance matrix
- multiple scales
- anisotropic diffusion
- level set
- principal component analysis
- feature detectors
- zero crossing
- optimal solution
- scale space
- fourth order
- color images
- kernel matrix
- gaussian derivatives
- object recognition