Automatic reading system of meter based on image sensor

GUO Yong-cai; LIU Li-jun; GAO Chao

doi:10.13873/j.1000-97872012.11.046

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Automatic reading system of meter based on image sensor

更新时间：2025-09-11

- Automatic reading system of meter based on image sensor
- Vol. 31, Issue 11, Pages: 115-117+121(2012)
- 作者机构：
  
  重庆大学光电技术及系统教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.11.046
  CLC： TP212
- Published：2012
- 稿件说明：
移动端阅览
[1]郭永彩,刘丽君,高潮.基于图像传感器的仪表自动读数系统[J].传感器与微系统,2012,31(11):115-117+121.

GUO Yong-cai, LIU Li-jun, GAO Chao. Automatic reading system of meter based on image sensor[J]. 2012, 31(11): 115-117+121.
[1]郭永彩,刘丽君,高潮.基于图像传感器的仪表自动读数系统[J].传感器与微系统,2012,31(11):115-117+121. DOI： 10.13873/j.1000-97872012.11.046.

GUO Yong-cai, LIU Li-jun, GAO Chao. Automatic reading system of meter based on image sensor[J]. 2012, 31(11): 115-117+121. DOI： 10.13873/j.1000-97872012.11.046.

摘要

基于图像传感器的仪表自动读数是现代测量的发展趋势。利用机器视觉和图像处理技术

设计了一种机器视觉与图像传感器测量相结合的自动读数测量系统。利用LED漫反射光源的特性设计测量用光

有效削弱仪表表面的强镜面反射

取得光照较均匀的图像;利用移位寄存式线性逼近法从刻线群中识别出对准刻线;利用特征窗平移法提取字符特征实现了快速字符识别。实验表明:系统的测量准确性比用传统的测量方法提高了1倍

而且操作便捷

测量效率高。

Abstract

Automatic reading of meter based on image sensor is the trend of modern measurements.An automatic reading measurement system combining machine vision and image processing technology is designed.It makes full use of diffuse reflection LED optical source

to effectively reduce the specula reflection of highly reflective surface

to obtain high quality image.Use shifting register linear approach method to recognize the trained scale from scale group.Featured window translation method is used to realize fast character recognization.The experiment shows that the accuracy of measurement system is doubled than the traditional measurement methods with convenient operation and high efficiency.

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references

分行显示数字仪表读数的自动识别 [J]. 张艳玲,汪仁煌,黄挺. 计算机工程 . 2007(23)

用图象识别概念判读指针式仪表读数的研究 [J]. 郭子海,郭健,谭志强. 仪器仪表学报 . 1996(03)

金属表面光学反射特性的研究 [J]. 安福生. 计量学报 . 1988(01)

光源原理与设计[M]. 复旦大学出版社 , 周太明编著, 1993

Machine printed character segmentation —; An overview [J] . Yi Lu. Pattern Recognition . 1995 (1)

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