Reference : L-surface and V-valley for optimal anisotropic 2D smoothing
E-prints/Working papers : First made available on ORBi
Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
http://hdl.handle.net/2268/172235
L-surface and V-valley for optimal anisotropic 2D smoothing
English
Frasso, Gianluca mailto [Université de Liège - ULiège > Institut des sciences humaines et sociales > Méthodes quantitatives en sciences sociales >]
Paul, Eilers mailto [Erasmus University Medical Center > Department of biostatistics > > Professor >]
24-Sep-2014
No
[en] L-surface ; penalties ; tensor product P-splines ; V-valley
[en] We present the L-surface as an attractive generalization of the L-curve framework for the selection of the optimal smoothing parameters in two dimensional applications. It preserves the desirable features of its unidimensional analogous. The optimal amount of smoothing is indicated by the pair of parameters located in the point of maximum (Gaussian) curvature. Locate this point on a discrete parametric surface can be not straightforward. We introduce the V-valley as a simplified selection criterion based on distance minimization.
http://hdl.handle.net/2268/172235

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
L-surface.pdfThis is the draft of a submitted paperAuthor preprint1.39 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.