公开(公告)号：EP1383084A3

公开(公告)日：2004-07-14

申请号：EP03023001.5

申请日：1994-10-27

申请人： TOSHIBA ENGINEERING CORPORATION

发明人： Itagaki, Chuji ,  Itou, Masahiro ,  Ichiba, Kouzou

IPC分类号： G06T7/00

CPC分类号： G06T7/0004 ,  G01N21/88 ,  G01N21/89 ,  G01N2021/9513 ,  G06T7/0006 ,  G06T2207/20021 ,  G06T2207/30121 ,  G06T2207/30124 ,  G06T2207/30136

摘要： The present invention provides a method and apparatus of inspecting a surface of an object article capable of precisely detecting stains or miniature defects present in the object surface. Specifically, the invention provides a method of inspecting surface irregularity of an object article having a surface of uniform or regular brightness, which comprises the steps of: gaining brightness informations for a plurality of two-dimensionally distributed pixels by taking a picture of the article surface; finding stains on the article surface in response to each information obtained in the brightness information gaining step to produce a first output; finding miniature defects smaller in size than a unit pixel in response to each information obtained in the brightness information gaining step to generate a second output; switching the first output and the second output into appropriate electrical signals in a controlled manner; and displaying the switched electrical signals on a display in a viewable condition.

公开(公告)号：EP1383084A2

公开(公告)日：2004-01-21

申请号：EP03023001.5

申请日：1994-10-27

申请人： TOSHIBA ENGINEERING CORPORATION

发明人： Itagaki, Chuji ,  Itou, Masahiro ,  Ichiba, Kouzou

IPC分类号： G06T7/00

CPC分类号： G06T7/0004 ,  G01N21/88 ,  G01N21/89 ,  G01N2021/9513 ,  G06T7/0006 ,  G06T2207/20021 ,  G06T2207/30121 ,  G06T2207/30124 ,  G06T2207/30136

摘要： The present invention provides a method and apparatus of inspecting a surface of an object article capable of precisely detecting stains or miniature defects present in the object surface. Specifically, the invention provides a method of inspecting surface irregularity of an object article having a surface of uniform or regular brightness, which comprises the steps of: gaining brightness informations for a plurality of two-dimensionally distributed pixels by taking a picture of the article surface; finding stains on the article surface in response to each information obtained in the brightness information gaining step to produce a first output; finding miniature defects smaller in size than a unit pixel in response to each information obtained in the brightness information gaining step to generate a second output; switching the first output and the second output into appropriate electrical signals in a controlled manner; and displaying the switched electrical signals on a display in a viewable condition.

摘要翻译： 本发明提供一种能够精确地检测物体表面中存在的污点或微小缺陷的物体物品的表面的检查方法和装置。 具体而言，本发明提供一种检查具有均匀或规则亮度表面的物品的表面不规则性的方法，其特征在于包括以下步骤：通过拍摄物品表面的图像来获得多个二维分布像素的亮度信息 ; 响应于在亮度信息获取步骤中获得的每个信息产生第一输出，在物品表面上发现污点; 响应于在亮度信息获取步骤中获得的每个信息产生第二输出，发现尺寸小于单位像素的微型缺陷; 以受控的方式将第一输出和第二输出切换成适当的电信号; 以及在可视状态下在显示器上显示所切换的电信号。