Table 1.
Reference | Basis | Support | Locality param. | IDTa | Regularization | Opt. |
---|---|---|---|---|---|---|
Bookstein 1989 | TPS | Infinite | None | No | 2nd derivative | LEb |
Kybic and Uncer 2003 | B-spline | Compact | Grid spacing | Yes | No | GDc |
Sorzano et al 2005 | B-spline | Compact | Grid spacing | Yes | Divergence&curl | GD |
Rohr et al 2004 | Gaussian RBF | Infinite | Kernel width | Yes | Gaussian filter | GD |
Christensen et al 1997 | Eigenfunctions | Infinite | None | Yes | 2nd derivatives | GD |
Rohr et al 2001 | TPS | Infinite | None | No | 2nd derivatives | LE |
Kohlrausch et al 2005 | GEBS | Infinite | Kernel width | No | 2nd derivative | LE |
Fornefett et al 2001 | Wendland RBF | Compact | Support radius | No | No | LE |
Arad et al 1994 | Gaussian RBF | Infinite | Kernel width | No | No | LE |
This work | Gaussian RBF | Infinite | Kernel width | No | 2nd derivative | LE |
Intensity data term
Linear equations
Gradient descent