| 基于视觉图像质心的焊缝跟踪新技术 |
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| 引用本文： | 陈永平,高向东,陈章兰,谢志孟.基于视觉图像质心的焊缝跟踪新技术[J].焊接技术,2005,34(4):25-27. |
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| 作者姓名： | 陈永平 高向东 陈章兰 谢志孟 |
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| 作者单位： | 广东工业大学,机电工程学院,广东,广州,510000 |
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| 基金项目： | 国家自然科学基金资助项目（60375012）,广东省自然科学基金资助项目（020176）. |
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| 摘 要： | 从基于图像质心的焊缝跟踪技术出发，通过对图像质心公式的深入研究，根据图像灰度与视觉传感器响应电压值的关系、响应电压值与检测部位的发射率及光谱辐射强度等关系，从理论上得出质心与焊缝中心的关系模型，论证了图像质心与焊缝中心存在相关性，并通过大量试验证明了关系模型的准确性。
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| 关 键 词： | 视觉图像 质心 焊缝中心 焊缝跟踪 |
| 文章编号： | 1002-025X(2005)04-0025-03 |
| 收稿时间： | 2005-03-17 |
| 修稿时间： | 2005-05-25 |
A new technology of weld tracking based on image centroid |
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| CHEN Yong-ping,GAO Xiang-dong,CHEN Zhang-lan,et al..A new technology of weld tracking based on image centroid[J].Welding Technology,2005,34(4):25-27. |
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| Authors: | CHEN Yong-ping GAO Xiang-dong CHEN Zhang-lan |
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| Abstract: | The paper studies the weld tracking technology based on image centroid by expounding the equation of centroid.Based on the relation between the response voltage of CCD and the gray value of welding visual image,the relation beteen the response voltage as well as the emissivity and the radiant intensity of workpieces and weld,a model describing the relation between the centroid of welding visual image and the centre of weld has been deduced theoretically.The validity of the model is proved via a great deal of experiments. |
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| Keywords: | visual image centroid seam center weld tracking |
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