| 基于视觉图像的石英摆片参数精密测量方法 |
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| 引用本文： | 佟庆彬,丁振良,王艳,袁峰.基于视觉图像的石英摆片参数精密测量方法[J].光电子．激光,2008,19(4):521-524. |
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| 作者姓名： | 佟庆彬 丁振良 王艳 袁峰 |
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| 作者单位： | 1. 哈尔滨工业大学电气学院,黑龙江,哈尔滨,150001
2. 哈尔滨工业大学机电学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 中国运载火箭技术研究院230厂资助 |
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| 摘 要： | 为了解决检测石英摆片易划伤和提高检测的速度、精度,提出了利用视觉图像进行石英摆片平面几何参数测量的非接触测量方法.该方法通过视觉系统对石英摆片图像进行摄取, 由Sobel算子对图像进行单像素精度的边缘初始位置定位,进而利用改进的Zernike矩亚像素定位算法实现对目标边缘的精确定位,最后通过最小二乘法拟合边缘点得出石英摆片的平面几何参数.实验结果表明:该方法稳定性好,测量精度高,定位精度优于0.1 pixel,可实现石英摆片平面几何参数的精密测量.
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| 关 键 词： | 几何参数测量 石英摆片 亚像素边缘定位 Zernike矩算子 |
| 文章编号： | 1005-0086(2008)04-0521-04 |
| 修稿时间： | 2007年3月25日 |
Accurate measurement method for parameters of quartz pendulous reed based on the vision image |
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| TONG Qing-bin,DING Zhen-liang,WANG Yan,YUAN Feng.Accurate measurement method for parameters of quartz pendulous reed based on the vision image[J].Journal of Optoelectronics·laser,2008,19(4):521-524. |
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| Authors: | TONG Qing-bin DING Zhen-liang WANG Yan YUAN Feng |
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| Affiliation: | TONG Qing-bin 1,DING Zhen-liang1,WANG Yan2,YUAN Feng1(1.School of Electrical Engineering , Automation,Harbin Institute of Technology,Harbin 150001,China,2.School of Mechtronic Engineering,China) |
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| Abstract: | In order to solve the problem that quartz pendulous reed(QPR)is easily scratched and improve the speed and accuracy of the detection,a novel non-contact measurement method based on the visual image to acquire the geometrical plane parameters of QPR is presented in this paper.The images of QPR are obtained by the system of vision,and Sobel operator is used to calculate the gray-level gradient image and locate one pixel accuracy;then the sub-pixel positioning algorithm of Zernike moments operator is used to c... |
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| Keywords: | geometrical parameter measurement quartz pendulous reed sub-pixel edge localization Zernike moment operator |
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