Least Error Approximation and Its Application for Free-Form Curves Based on Multi-Knots Spline
2010
Muti-knots spline has good locality and least square method has good global characteristics for data fitting. Therefore, the stability and numerical accuracy of least square method based on multi-knots spline approximation could be reached effectively. This paper combines the advantages of them and completes the model building of the free-form curves with least approximation error based on multi-knots spline. Meanwhile, this method is applied to the free-form-curve fitting of some plane and space (even with noise) data and Geometry Shape Skelectonization. The fitting results show that the least approximation effect is good.
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