3D Cubic B-Spline Interpolation and Error Estimation
Theme: Implement and study 3D Cubic Spline Interpolation
Input: a set of points in 3D space (data(x,y,z))
Output: Spline, Spline data points and error, 3D graph that shows the original points and the Spline
The major steps involved in the B-Spline Fitting and Error Estimation are as mentioned below:
1- Sample the data points from input data.
2- Interpolate to find the position of control points.
3- Use the B-Spline basis function to generate the data points of output Spline data points.
4- Error estimation via comparing the generated data points and input data.
Suggested approach: start with some points in 2D to debug and test your code, then move to 3D. test the code for different sets of 3D points.
spline
Cubic spline data interpolatio
Syntax
s = spline(x,y,xq)
pp = spline(x,y)
Description
s = spline(x,y,xq) returns a vector of interpolated values s corresponding to the query points in xq. The values of s are determined by cubic spline interpolation of x and y.
pp = spline(x,y) returns a piecewise polynomial structure for use by ppval and the spline utility unmkpp.
3D Cubic B-Spline Interpolation and Error Estimation Theme: Implement and study 3D Cubic Spline ...
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