| 基于NURBS曲线插值的激光光刀图像中心提取方法的研究 |
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| 引用本文： | 隋连升,李兵,蒋庄德.基于NURBS曲线插值的激光光刀图像中心提取方法的研究[J].中国激光,2003,30(10):933-937. |
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| 作者姓名： | 隋连升 李兵 蒋庄德 |
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| 作者单位： | 西安交通大学精密工程研究所,陕西,西安,710049 |
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| 基金项目： | 陕西省自然科学基金 (编号 :2 0 0 1c4 3)资助项目 |
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| 摘 要： | 通过介绍激光扫描测量原理 ,说明准确地从光刀图像中提取光刀中心位置是影响测量精度的关键因素。提出了基于非均匀有理B样条 (NURBS)曲线插值的光刀中心提取方法。通过实验说明该方法重复提取的结果比较稳定 ,而且将误差控制在 0 1个像素以下 ,从而使重复测量的高度误差在 0 0 2mm以下
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| 关 键 词： | 图像处理 反求工程 激光扫描系统 非均匀有理B样条(NURBS) |
| 收稿时间： | 2002/6/17 |
Research on Method of Laser-knife Center Position Etracting Based on NURBS Interpolation |
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| SUI Lian-sheng,LI Bing,JIANG Zhuang-de.Research on Method of Laser-knife Center Position Etracting Based on NURBS Interpolation[J].Chinese Journal of Lasers,2003,30(10):933-937. |
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| Authors: | SUI Lian-sheng LI Bing JIANG Zhuang-de |
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| Abstract: | This paper argues that how to compute the center position of the knife in the image obtained by CCD accurately is a key issue by introducing the principle of laser scanning system. In this paper, a new method based on NURBS curve interpolation is designed. The experiments show that the results computed by this method are stable and the errors are controlled below 0 1 pixel. Thus, the errors in the height direction are less than 0 02 mm. |
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| Keywords: | image processing reverse engineering laser scanning system NURBS |
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