Automatic liquid level detection method for capillary-gravity viscometer based on background difference

Abstract

Abstract: Aiming at the shortcomings of the capillary viscometer liquid level detection method, the frame differential method and background difference algorithm are studied, a method for multi-capillary viscometer verification is conceived and designed. By the image processing method of background difference method, the segmentation of the moving foreground and background is achieved. A virtual test line is used to detect the capillary viscometer liquid level. Visual C++ combined with Opencv is used for programming, the method is tested for the four capillary viscometer, and the effective result is obtained.

Key words: background difference, image processing, virtual test line, capillary viscometer verification

摘要： 针对现有毛细管粘度计液位检测方法的不足，通过研究帧差法与背景差分算法，构思并设计了一种对多毛细管粘度计同时检定的方法。通过背景差分的图像处理方法，实现运动前景和背景的分割；使用虚拟检测线法实现毛细管粘度计液面运动位置的检测。该方法使用Visual C++结合Opencv进行编程实现，对实际毛细管粘度计四通道进行测试，取得良好效果。

关键词: 背景差分法, 图像处理, 虚拟检测线, 毛细管粘度计检定

LIANG Xiyin, KONG Yongsheng, XU Haiying. Automatic liquid level detection method for capillary-gravity viscometer based on background difference[J]. Computer Engineering and Applications, 2015, 51(2): 245-249.

梁西银，孔永胜，徐海英. 背景差分法自动检测毛细管粘度计液位的方法[J]. 计算机工程与应用, 2015, 51(2): 245-249.

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Automatic liquid level detection method for capillary-gravity viscometer based on background difference

背景差分法自动检测毛细管粘度计液位的方法

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