| 基于能量最小化控制点的B样条插值算法 |
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| 引用本文： | 原庆红,韩燮. 基于能量最小化控制点的B样条插值算法[J]. 微电子学与计算机, 2011, 28(4): 49-51,56 |
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| 作者姓名： | 原庆红 韩燮 |
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| 作者单位： | 中北大学,电子与计算机科学技术学院,山西,太原,030051 |
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| 摘 要： | 针对在虚拟现实中重现物体的精确性问题,提出了采用自适应方法提取合适的特征点来插值B样条曲线的算法,实现了满足一定精度要求的数据点拟合以及控制点的反算.该算法首先通过曲率信息选取初始特征点作为型值点,然后应用线性约束能量最小化方法反算出控制点.由控制点和节点矢量拟合出B样条曲线,找出数据点与曲线偏差最大点,利用曲线复杂度指标自适应地添加新特征点,反复迭代直到满足要求的误差精度.该算法适用于逆向工程设计中重建物体和计算空间曲面控制点等问题.
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| 关 键 词： | 能量最小化方法 特征点 B样条曲线 |
B-spline Interpolation Algorithm Based on Energy Minimization Control Point |
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| YUAN Qing-hong,HAN Xie. B-spline Interpolation Algorithm Based on Energy Minimization Control Point[J]. Microelectronics & Computer, 2011, 28(4): 49-51,56 |
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| Authors: | YUAN Qing-hong HAN Xie |
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| Affiliation: | YUAN Qing-hong,HAN Xie(College of Electronics and Computer Science and Technology,North University of China,Taiyuan 030051,China) |
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| Abstract: | To reproduce the accuracy objects of the problem in virtual reality,this paper presents an adaptive method to extract feature points suitable B-spline curve interpolation algorithm.Achieve a certain precision to meet the requirements of fitting the data points and control points inverse.The algorithm selected by the initial curvature information of feature points as data points,then appling the method of energy minimization with linear constraints against calculated control point.By the control points and k... |
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| Keywords: | energy minimization method of linear constraints feature points B-spline curve |
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