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文章摘要
多类指针式仪表识别读数算法研究
Research on Pointer Identifying and Number Reading of Multiple Pointer Instruments
Received:March 01, 2019  Revised:March 01, 2019
DOI：10.19753/j.issn1001-1390.2020.16.025
中文关键词: 多类仪表  SIFT  LSD  自动读数  万用表
英文关键词: Multi class pointer instruments, LSD, SIFT, Automatic reading number, Multimeter
基金项目:
Author NameAffiliationE-mail
Zhangxuefei* Sichuan University 372289150@qq.com 
Huang Shan Sichuan University huangshancd@vip.sina.com 
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中文摘要:
      针对多类指针式仪表，文中研究可以进行统一自动识别读数的算法框架。基于指针式仪表的结构特性，结合特征点的不可替代性提出，根据尺度不变特征点(Scale-invariant feature transform，SIFT)匹配程度自动检测仪表类别。采用快速直线检测(Line Segment Detector，LSD)提取待定直线区域，创新地利用直线边缘的方向性约束得到指针两侧边缘，完成指针识别。研究中设计快速生成模板工具，保存仪表刻度角度-读数映射表，促成多类仪表自动读数。在此基础上，添加万用表评估算法优劣综合评估检测识别率、提取指针、读数精确度，满足设计要求，最终算法运行在Android系统的手持仪设备上。
英文摘要:
      
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