| 基于图像处理的轮辐角度测量 |
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| 引用本文： | 关明宇,黄茜,胡志辉,罗超群. 基于图像处理的轮辐角度测量[J]. 数据采集与处理, 2019, 34(1): 189-194 |
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| 作者姓名： | 关明宇 黄茜 胡志辉 罗超群 |
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| 作者单位： | 华南理工大学电子与信息学院，广州，510641 |
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| 基金项目： | 国家自然科学基金61271314;广东省科技计划2014A050503022;广州市科技计划201704030062国家自然科学基金（61271314）资助项目；广东省科技计划（2014A050503022）资助项目；广州市科技计划（201704030062）资助项目。 |
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| 摘 要： | 针对轮毂在进行X射线探伤前需要预先调整轮毂轮辐位置的问题，利用图像处理的方法实现了轮毂轮辐初始角度的测量。首先用霍夫变换去除轮毂圆之外的干扰信息。然后根据轮辐条数，在轮毂模板图像上设定一个标准扇形检测区域，在待检轮毂上转动检测区域，用灰度比较法计算出角度。实验结果表明，该方法能较好地测量轮毂轮辐初始角度，符合工业要求。
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| 关 键 词： | 图像处理 霍夫变换 灰度比较 轮辐角度测量 |
| 收稿时间： | 2017-10-30 |
| 修稿时间： | 2018-03-13 |
Spoke-Angle Measurement with Image Processing |
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| Guan Mingyu,Huang Qian,Hu Zhihui,Luo Chaoqun. Spoke-Angle Measurement with Image Processing[J]. Journal of Data Acquisition & Processing, 2019, 34(1): 189-194 |
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| Authors: | Guan Mingyu Huang Qian Hu Zhihui Luo Chaoqun |
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| Affiliation: | School of Electronic and Information Engineering, South China University of Technology, Guangzhou, 510641, China |
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| Abstract: | The spoke position of a wheel needs to be adjusted before the wheel-flaw detection by X-Ray machine. A method based on image processing is proposed for initial angle measurement of the spoke. Firstly, the Hough transformation is used to remove the interference information outside the wheel-circle, and then a sector sample of detection area is set on the wheel pattern image according to the number of the spokes. Finally, the tested sector detection area on the wheel is rotated, and the angle is calculated by comparing the gray scale. Experimental results show that the method can measure the initial angle of the spoke, which meets the industrial requirements. |
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| Keywords: | image processing Hough transformation gray scale comparison spoke-angle measurement |
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