Function, Gradient, and Hessian Recovery Using Quadratic Edge-Bump Functions.
Jeffrey S. OvallPublished in: SIAM J. Numer. Anal. (2007)
Keyphrases
- edge detection
- gradient information
- quadratic function
- linear functions
- zero crossing
- image gradient
- gradient direction
- convex functions
- multiscale
- edge strength
- multi valued
- piecewise linear
- neural network
- continuous functions
- differential operators
- image recovery
- gradient magnitude
- pairwise
- recovery algorithm
- spline interpolation
- directional derivatives