公开(公告)号：EP2406055B1

公开(公告)日：2018-10-03

申请号：EP10711986.9

申请日：2010-03-10

申请人： Polymer Competence Center Leoben GmbH

发明人： GRUBER, Dieter P.

IPC分类号： B29C45/76 ,  B07C5/342 ,  G01N21/88

CPC分类号： B29C45/7686 ,  B29C2945/7616 ,  B29C2945/76163 ,  B29C2945/7629 ,  B29C2945/76464 ,  B29C2945/76943 ,  G01N21/8851

公开(公告)号：EP2406055A1

公开(公告)日：2012-01-18

申请号：EP10711986.9

申请日：2010-03-10

申请人： Polymer Competence Center Leoben GmbH

发明人： GRUBER, Dieter P.

IPC分类号： B29C45/76 ,  B07C5/342 ,  G01N21/88

CPC分类号： B29C45/7686 ,  B29C2945/7616 ,  B29C2945/76163 ,  B29C2945/7629 ,  B29C2945/76464 ,  B29C2945/76943 ,  G01N21/8851

摘要： The invention relates to a method for detecting a defect on a surface of a molded part, in particular an injection-molded part made of plastic, wherein the surface of the molded part is optically measured and a measurement result is evaluated in an automated manner in order to detect a defect, where applicable. According to the invention, at least one two-dimensional image is taken of the molded part in the form of an intensity matrix having n times m pixels using a camera, whereupon the intensity matrix is optionally converted into a further matrix, whereupon the intensity matrix or optionally the further matrix is folded using at least one function describing a contrast perception characteristic and/or a resolving power of a human eye, whereupon with respect to a predetermined threshold value the matrix obtained in this manner is used to calculate whether an existing defect, where applicable, is recognized by a human eye.

摘要翻译： 本发明涉及一种用于检测模制件表面上的缺陷的方法，特别是用塑料制成的注模部件，其中模制件的表面被光学测量，并且测量结果以自动方式评估 在适用的情况下检查缺陷。 根据本发明，使用照相机以具有n倍m个像素的强度矩阵的形式获取至少一个二维图像，随后强度矩阵可选地转换成另外的矩阵，于是强度矩阵 或者可选地使用描述人眼的对比感知特性和/或分辨力的至少一个函数来折叠另外的矩阵，于是相对于预定阈值，以这种方式获得的矩阵用于计算现有缺陷 在适用的情况下，被人眼识别。