一种新的边界提取算法及其在接触角测量中的应用  

A New Boundary Extraction Algorithm and Its Application in the Contact Angle Measurement

作　　者：张佩[1] 万永菁[1] 周又玲[1] 

机构地区：[1]华东理工大学信息科学与工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2014年第6期746-751,762,共7页Journal of East China University of Science and Technology

基　　金：国家自然科学基金(61371150)

摘　　要：提出一种基于子图像邻域梯度信息度量的边界提取算法,通过构造邻域信息映射矩阵并利用矩阵梯度信息度量值提取图像目标的有效边界,详细阐述了应用本文算法实现劣质液滴图像的边界检测及接触角测量的方法与步骤。实验结果表明:本文算法能有效地提取劣质液滴图像的目标边界,完成液滴接触角的自动计算,接触角计算结果与人工计算结果基本一致。The paper proposed a boundary extraction algorithm based on sub-image neighborhood gradient information metrics. By constructing the neighborhood information mapping matrix and using the metric of matrix gradient information, the proposed algorithm extracted the effective border. The methods and procedures were analyzed for boundary detection and contact angle measurements of the image of poor droplet. Experimental results show that this algorithm can effectively extract the object boundaries of the image of poor droplet and achieve the automatic calculation of contact angle, whose results are consistent with the manual calculations.

关 键 词：接触角测量 液滴图像 边界提取 邻域信息 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]