摘要
针对中性透明笔芯和无色硅油灰度差异小所导致的硅油注入量检测困难等问题,提出并设计一种基于机器视觉的无色硅油注入量检测方法与系统。该系统硬件部分主要包括图像采集单元和外部光源控制单元等,通过调节外部光源照射角度实现无色硅油区域灰度差异的增强;软件与算法部分运用一种灰度区域直方图算法,在搭建的人工交互界面上选取相应的感兴趣区域(ROI)及参数,实时显示长度检测结果。试验结果表明,该系统能准确检测硅油连续长度,系统的实时性及稳定性较好,准确率高,具有一定的推广应用价值。
Aiming at the difficulty in detecting the amount of silicone oil injection caused by the small gray difference between the neutral transparent refill and the colorless silicone oil,a new method and system for detecting the injection amount of colorless silicone oil based on machine vision was proposed and designed.An image acquisition unit and an external light source control unit were the main hardware part of the system.By adjusting the illumination angle of the external light source,the enhancement of the gray difference in the colorless silicone oil area can be realized.In the part of software and algorithm,a gray region histogram algorithm was used to select the corresponding region of interest(ROI)and parameters on the constructed human interaction interface,and the length detection results were displayed in real time.The experimental results show that the system can accurately detect the continuous length of silicone oil,the system has good real-time performance and stability,high accuracy,and has a certain value of promotion and application.
作者
李志伟
郭亨长
李宏伟
任远红
周武能
LI Zhiwei;GUO Hengchang;LI Hongwei;REN Yuanhong;ZHOU Wuneng(School of Information Science and Technology,Donghua University,Shanghai 201620,China;School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai M&G Stationery Incorporation,Shanghai 201406,China)
出处
《上海工程技术大学学报》
CAS
2022年第1期16-22,共7页
Journal of Shanghai University of Engineering Science
基金
教育部产学合作协同育人项目资助(201701014003,201802046057)
东华大学研究生创新基金资助(CUSF-DH-D-2020083)
上海工程技术大学大学生创业训练及创业实践项目资助(xjcy202110856011)。
关键词
无色硅油
笔芯
图像滤波
灰度值差异
机器视觉
colorless silicone oil
pen-refill
image filtering
grayscale difference
machine vision
