CAJ | 학술논문

针对工业产品中非规则形状检测方法少、检测效率低的现状，本文提出了一种基于图像处理的快速高效检测方法。该方法首先对实际拍摄图像与参考模型进行特征点匹配，通过匹配寻找两幅图像中轮廓位置的映射关系，进而求解实际拍摄图像到参考模型的透视变换参数；然后对实际拍摄图像中的非规则形状进行高精度边缘提取，利用求取的透视变换参数对提取的边缘点进行变换；最后将计算得到的数据与参考图像中的数据进行比较，以此进行非规则形状检测。该方法为非接触式，设备少，环境影响小，数据对象仅是摄影图像，检测速度快，适用于各种非规则形状。标准实验分析表明，该方法检测精度优于0.2 mm，具有较高的检测精度及较好的检测效率。
침대공업산품중비규칙형상검측방법소、검측효솔저적현상，본문제출료일충기우도상처리적쾌속고효검측방법。해방법수선대실제박섭도상여삼고모형진행특정점필배，통과필배심조량폭도상중륜곽위치적영사관계，진이구해실제박섭도상도삼고모형적투시변환삼수；연후대실제박섭도상중적비규칙형상진행고정도변연제취，이용구취적투시변환삼수대제취적변연점진행변환；최후장계산득도적수거여삼고도상중적수거진행비교，이차진행비규칙형상검측。해방법위비접촉식，설비소，배경영향소，수거대상부시섭영도상，검측속도쾌，괄용우각충비규칙형상。표준실험분석표명，해방법검측정도우우0.2 mm，구유교고적검측정도급교호적검측효솔。
In view of the current situation that the detection method is inefficient and low efficiency, this paper proposes a fast and efficient detection method for irregular shape. In this method, matching feature points between the actual captured image and the reference model are firstly used to find the contour mapping of the location, thereby solve their perspective transformation parameters. Then, extract edge of the irregular shape in the target image and transform the extracted edge points using the perspective transformation parameters. Finally, compared with the data, this method, non-contact, less equipment, low environmental impact, object is only the photographic image, and fast detection speed is suitable for all kinds of irregular shape. Standard experimental analysis shows that the method has high detection precision with 0.2 mm and good efficiency.