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中南大学学报(自然科学版)

Journal of Central South University

第51卷    第6期    总第310期    2020年6月

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文章编号:1672-7207(2020)06-1526-08
基于轴线偏转切片法的料滴体积测量方法
邹光明1, 2,周世凡1, 2,王兴东1,刘源泂1,刘怀广1, 2

(1. 武汉科技大学 冶金装备及其控制教育部重点实验室,湖北 武汉,430081;
2. 武汉科技大学 机器人与智能系统研究院,湖北 武汉,430081
)

摘 要: 为了解决玻璃生产过程中因高效、高速和高温而不便于对玻璃料滴进行常规称质量的问题,提出一种用于测量料滴的体积和质量的非接触测量方法。搭建动态料滴的冷态模拟系统采集料滴图像,在B通道分量中阈值分割得到料滴与背景的二值图像。利用水平切片法计算料滴体积,分析料滴偏转角度对水平切片法计算精度的影响;根据边缘确定料滴的旋转对称轴,计算料滴偏转角度并自适应纠正偏转料滴,累加水平分割的各部分体积得到料滴体积和质量。研究结果表明:当料滴旋转轴发生偏转时,测量误差随着偏转角度增加而变大;对于不同料滴形状,利用轴线偏转切片法测量料滴体积的平均误差与标准差分别为0.96%和1.24。

 

关键字: 机器视觉;玻璃料滴;扫描投影;水平切片;偏转纠正

Measuring method of gob volume based on axis deflection slice algorithm
ZOU Guangming1, 2, ZHOU Shifan1, 2, WANG Xingdong1, LIU Yuanjiong1, LIU Huaiguang1, 2

1. Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;
2. Institute of Robotics and Intelligent Systems, Wuhan University of Science and Technology, Wuhan 430081, China

Abstract:A non-contact measuring method for measuring the volume and mass of glass gob was proposed to solve the difficult weighing problem caused by high efficiency, high speed and high temperature in glass production. The cold state simulation system of dynamic gob was built to collect gob images. The binary image of the gob and the background was obtained by threshold segmentation in the B channel component. The volume of gob was calculated by horizontal slice method. The influence of gob deflection angle on the calculation accuracy of horizontal slice method was analyzed. The rotation axis of the gob was determined according to the edge. The deflection angle of gob was calculated, and the deflected gob was adaptively corrected. The volume and mass of gob were obtained by summing up the volume of each part. The results show that when the rotation axis of the gob is deflected, the measurement error becomes larger as the deflection angle increases. For different gob shapes, the average error and standard deviation of gob volume measured by the axial deflection slice method are 0.96% and 1.24 respectively.

 

Key words: machine vision; glass gob; scan projection; horizontal slice; deflection correction

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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