带钢表面缺陷严重程度的模糊综合评判研究  

Research on fuzzy comprehensive assessment for the serious extent of steel strips’surface defect

作　　者：董德威[1] 颜云辉[1] 陈立武[1] 丛家慧[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《计算机工程与设计》2011年第4期1484-1487,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(50574019);国家863高技术研究发展计划基金项目(2008AA04Z135)

摘　　要：为解决传统带钢表面缺陷严重程度评价方法实时性差,漏检、误检错误率高的问题,提出了基于模糊综合评判法的带钢表面缺陷严重程度评价方法。在分析出带钢表面的缺陷种类后,运用图像处理方法对带钢表面的缺陷图像进行区域测量,准确计算出缺陷面积、缺陷长度、缺陷周长、缺陷细长比以及缺陷形状因子等参数。应用层次分析法确定各种因素对带钢表面质量影响的权重,运用模糊综合评判方法,合理地评判出缺陷的严重程度。通过应用实例表明了该方法的实用性和有效性。In order to solve the problem of bad real-time,high miss-detection and false-detection in traditional assessment method of the serious extent of steel strips’surface defect,the assessment method of the serious extent of steel strips’surface defect based on fuzzy comprehensive assessment is put forward.After analyzing the defectst’ypes of steel strips’surface and measuring the defect region of the steel stripsi’mage,computing defect area,defect length,defect perimeter,defect width-length ratio and defect factor of shape accurately.The weights of all influencing factors on the surface quality of steel strips are determined by using AHP（analytic hierarchy process）,then the serious extent of defect reasonable is evaluated by using the fuzzy comprehensive assessment.Result shows that the approach is feasible and effective.

关 键 词：表面质量 表面缺陷 带钢 层析分析法 模糊综合评判法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]