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近似弧长参数化Bézier曲线的最佳逼近
The best approximation of nearly arc-length parameterized Bézier curves
【摘要】 考虑近似弧长参数化Bézier曲线的逼近问题。当获得Bézier曲线的一个近似弧长参数化[1]之后,这种参数化只能达到C0-连续性。为了增加其参数连续性,利用其带有端点约束的关于L2-模的最佳逼近以得到具有C2-连续性的Bézier样条曲线。实验证明,这种逼近的效果是十分理想的。
【Abstract】 In this paper,we consider the problem of the approximation of nearly arc-length parameterized Bézier curves.When a nearly arc-length parameterization[1] for a Bézier curve has been obtained,the parameterization could only acquire C0-continuity.To increase the parametric continuity,we use its best approximation with constraints at the endpoints with respect to L2-norm to get a Bézier spline curve with C2-continuity.Experiment proves that the effect of this approximation is quite satisfactory.
【基金】 国家自然科学基金(the National Natural Science Foundation of China under Grant No.60672135)
- 【文献出处】 计算机工程与应用 ,Computer Engineering and Applications , 编辑部邮箱 ,2007年27期
- 【分类号】TP391.4
- 【被引频次】2
- 【下载频次】101