作者：陈刚¹, 胡子峰¹, 郑超²

作者单位：1. 上海市质量监督检验技术研究院, 上海 200031;
2. 上海交通大学仪器科学与工程系, 上海 200240

关键词：数码识别;特征检测;数字仪表;快速识别

摘要：

为对数显类仪表的显示数据进行自动识别与监测，提高该类仪表的自动化水平，需要研究仪表数码快速识别算法。该文提出一种基于特征提取的数字仪表数码快速直接识别算法。将图像进行预处理后，对数显屏幕进行定位。通过列切实现单个数码字符切割，对单个数码字符进行七段特征检测和五线相交检测，实现对正体数码和斜体数码的快速直接识别。实验表明，算法基本可以满足各种仪表数码的识别需求，识别速度快、准度高。

Fast recognition algorithm for digital instruments based on feature detection
CHEN Gang¹, HU Zifeng¹, ZHENG Chao²
1. Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200031, China;
2. Department of Instrument Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract: In order to automatically identify and monitor the display of digital instruments and improve the automation of these instruments, it is necessary to study the fast recognition algorithm of the digital instruments. In this paper, a fast and direct digital recognition algorithm of the digital instruments based on feature extraction was presented. After the image was preprocessed, the digital display screen was positioned. The single digital character was cut and detected by seven-segment feature detection and five-line intersecting detection. Experiments showed that this algorithm could basically meet the recognition requirements of various digital instruments with high speed and accuracy.
Keywords: digital identification;feature detection;digital instruments;rapid identification
2019, 45(4):146-150  收稿日期: 2019-02-12;收到修改稿日期: 2019-03-14
基金项目:
作者简介: 陈刚(1980-),男,江苏靖江市人,高级工程师,硕士,主要从事几何量计量检测技术研究
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