作者：李小华

作者单位：延安职业技术学院公共课部, 陕西 延安 716000

关键词：液滴体积测量; 微流体系统; 图像处理; CCD相机; Canny算子

摘要：

为实现微机电系统(MEMS)微液滴体积的快速准确实时测量,提出基于图像处理技术的微液滴体积测量方法。首先,采用数字显微镜系统对微流控系统的微液滴进行图像采集,然后对原始图像进行数据分析和处理,最后进行维纳滤波、图像侵蚀、边缘提取,通过Canny算子选择高斯滤波器平滑处理后的图像,得出液滴的直径,进而计算出液滴体积。试验结果表明该方法用于微液滴体积测量是可行有效的。

Method of MEMS micro droplet volume measurement based on image processing

LI Xiao-hua

Yan'an Vocational and Technical College, Yan'an 716000, China

Abstract: In order to realize the rapid and accurate real-time measuring of micro droplet volume in microelectromechanical system (MEMS), it puts forward the micro droplet volume measurement method based on image processing technology. Firstly, the digital microscope system is adopted for the micro droplet microfluidic system. Then, the original image is used for numerical analysis and processing. Finally, the original image is dealt with the Wiener filtering, edge detection, image erosion. The processed image is smoothed by Gaussian filter selected by Canny operator to get the diameter of the droplet, and then calculate the droplet size. The test results show that the method used in micro droplet volume measurement is feasible and effective.

Keywords: droplet volume measurement; microfluidic system; image processing; CCD camera; canny operator

2014, 40(4): 37-41  收稿日期: 2014-1-15;收到修改稿日期: 2014-3-16

基金项目: 

作者简介: 李小华(1977-),女,陕西延安市人,讲师,硕士,主要研究方向为计算机应用。

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