| 一种新的三维轮廓测量方法 |
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| 引用本文： | 杨佳,贾书海.一种新的三维轮廓测量方法[J].光子学报,2007,36(6):972-975. |
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| 作者姓名： | 杨佳 贾书海 |
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| 作者单位： | 西安交通大学,光信息科学与技术系,西安,710049;西安交通大学,光信息科学与技术系,西安,710049 |
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| 基金项目： | 教育部“新世纪优秀人才支持计划”(NCET-05-0843)，陕西省科技攻关计划(2004K05-G14)，西安市工业科技攻关计划(GG05042)资助 |
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| 摘 要： | 提出了一种实用,高效的光电式三维轮廓测量方法.该方法基于激光三角法的基本原理,采用低通滤波与变阈值重心法相结合来提取光刀中心,不但速度快,而且有效地消除了噪音的影响,实现了光刀中心的精确定位.最后又推导出物像之间的线性关系,解决了系统定标问题,实现了物体轮廓的高效、低成本测量.
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| 关 键 词： | 三维轮廓测量 激光三角法 光刀中心 定标 |
| 文章编号： | 1004-4213（2007）06-0972-4 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-02-27 |
A Novel Method of Three Dimensional Profile Measurement |
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| YANG Jia,JIA Shu-hai.A Novel Method of Three Dimensional Profile Measurement[J].Acta Photonica Sinica,2007,36(6):972-975. |
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| Authors: | YANG Jia JIA Shu-hai |
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| Abstract: | A method of a practical and effective optical-electronic three dimensional profile measurement is proposed in this paper.The method,based on laser triangulation,takes use of low-pass filter and changing threshold and barycenter to get the central line of light section.Not only fast is the processing velocity,but also it can get rid of the noise influence and work out the accurate position of the central line of light section.Finally,a linear equation between the object and image is successfully concluded which solves the problem of system calibration and realizes the profile measurement. |
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| Keywords: | Three dimensional profile measurement Laser triangulation Central line of light section Calibration |
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