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{alias:tps} |
Name
tps — Thin plate spline gridding of well data
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TPS has been widely used as the non-rigid transformation model in image alignment and shape matching. The popularity of TPS comes from a number of advantages: (1) the interpolation is smooth with derivatives of any order; (2) the model has no free parameters that need manual tuning; (3) it has closed-form solutions for both warping and parameter estimation; and (4) there is a physical explanation for its energy function. |
Arguments
No arguments.
The grid will have the same number of rows and columns as the last grid that set the @nrow @ncol variables.
inc xinc yinc
Create grid model grid with increments xinc and yinc .
nx ny
Create a grid with nx times ny grid cells.
nosmo
A default smoothing is applied. This can be prevented with the nosmo option.
ref referencegrid
Apply a reference grid in workspace referencegrid for grid layout. Dimension of the grid is taken from the referencegrid.
Examples
Ex.1: Thin plate spline interpolating of points
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# Surface model gridding
z ;# Erase screen
win demo ;# Get demo window (450000 460000 6450000 6460000 1000 4000)
spe bgc whi ;# Specify background color to white
mak ran 11 ;# Make 11 random points
poi 2 ;# Display point with size width 2
tps 222 222 ;# Make grid of dimension 222 x 222
map ;# Map the grid
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