指针式仪表自动读数识别技术的研究现状与发展

Research Review and Development for Automatic Reading Recognition Technology of Pointer Instruments

指针式仪表自动判读技术是当前机器视觉研究的热点,也是模式识别领域一项重要的研究内容和前沿技术。在对指针式仪表识别技术进行了一般性概述之后,详细介绍了基于机器视觉的指针式仪表自动读数识别技术的基本概念、基本原理和主要研究内容,介绍了该技术在国内外的研究现状,同时重点介绍了图像校正、圆形表盘轮廓检测、指针线检测和角度计算等主要研究内容的最新进展,最后给出了指针式仪表自动读数识别涉及的关键技术和发展方向。

The technology of determining the reading of pointer instruments automatically is a hotspot of machine vision in recent years,which is also an important research content and advanced technology in the field of pattern recognition.After the general overview of the recognition technology of the pointer meters,the basic concept,fundamental and main research contents of automatic reading recognition technology of the pointer meters based on machine vision were introduced in this paper.The research status of this technology both at home and abroad was introduced.The latest progress of the image correction,detection of round contours,detection of the pointer and angle calculation was introduced.Finally,the key technology and the development direction of the automatic reading recognition technology were pointed out.