| 基于模版匹配和查表法的高精度指针式仪表自动检定系统研制 |
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| 引用本文： | 莫文雄,裴利强,黄青丹,张亚茹,付武怡芳,赵永平. 基于模版匹配和查表法的高精度指针式仪表自动检定系统研制[J]. 电测与仪表, 2017, 54(12). DOI: 10.3969/j.issn.1001-1390.2017.12.017 |
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| 作者姓名： | 莫文雄 裴利强 黄青丹 张亚茹 付武怡芳 赵永平 |
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| 作者单位： | 1. 广州供电局有限公司电力试验研究院,广州,510000;2. 哈尔滨工业大学,电气工程及自动化学院,哈尔滨 150001 |
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| 摘 要： | 基于查表法的高精度指针式仪表读数识别方法的关键在于相机与仪表表盘位置相对固定,之前研究采用机械夹具将仪表位置固定,但不同批次的仪表外壳尺寸会有差异,造成系统鲁棒性差,读数识别不准确。针对这一问题,文中采用模版匹配的方法实现相机与仪表表盘的准确对中。实验表明,所采用的方法显著提高系统鲁棒性及通用性。
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| 关 键 词： | 指针仪表 图像处理 模板匹配 查表法 |
| 收稿时间： | 2016-05-24 |
| 修稿时间： | 2016-05-24 |
Development of automatic verification system for high precision pointer instrument based on template matching and table searching |
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| MO Wenxiong,PEI Liqiang,HUANG danqing,ZHANG Yaru,FU Wuyifang and ZHAO Yongping. Development of automatic verification system for high precision pointer instrument based on template matching and table searching[J]. Electrical Measurement & Instrumentation, 2017, 54(12). DOI: 10.3969/j.issn.1001-1390.2017.12.017 |
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| Authors: | MO Wenxiong PEI Liqiang HUANG danqing ZHANG Yaru FU Wuyifang ZHAO Yongping |
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| Affiliation: | Electrical Power Test Research Institute of Guangzhou Power Supply Bureau,Guangzhou,Guangdong, China,Electrical Power Test Research Institute of Guangzhou Power Supply Bureau,Guangzhou,Guangdong, China,Electrical Power Test Research Institute of Guangzhou Power Supply Bureau,Guangzhou,Guangdong, China,Electrical Power Test Research Institute of Guangzhou Power Supply Bureau,Guangzhou,Guangdong, China,School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin,Heilongjiang,School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin,Heilongjiang |
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| Abstract: | The key to automatic verification system for high precision pointer instrument based on table searching is the relatively fixed position of camera and instrument dial.Previous studies used mechanical fixture to fix the position of the instrument.However,the shell sizes of different batches of instruments contain dimension errors,which cause poor robustness and reading recognition inaccurate.In order to solve this problem,template matching is employed to make sure the accurate alignment of the camera and instrument dial.Experiments demonstrate that the robustness and generality of the system is significantly improved by the proposed method. |
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| Keywords: | pointer instrument picture processing template matching table searching |
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