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1.发明公开Apparatus for inspecting appearance of cylindrical objects 失效Vorrichtung zur Kontrolle des Aussehens zylindrischer Objekte。
公开(公告)号：EP0548695A2
公开(公告)日：1993-06-30
申请号：EP92121085.2
申请日：1992-12-10
发明人： Futamura, Tsuyoshi, c/o Japan Tobacco Inc. , Suda, Hiroyoshi, c/o Japan Tobacco Inc. , Fujita, Minoru, Toshiba Engineering Corporation , Ichiba, Kouzou, Toshiba Engineering Corporation
CPC分类号： G06T7/0006 , A24C5/34 , G01N21/952 , G06T2207/10016 , G06T2207/30164
摘要： This invention relates to an apparatus for automatically inspecting abnormality in external surface, dirt on the surface, and poor shape of cylindrical objects by using image processing. The apparatus for inspecting the appearance of the cylindrical object according to the present invention comprises: rotating means for rotating the cylindrical object about an axis of the cylindrical object; picking up means for picking up images showing the appearance of the inspected object which are axially and circumferentially divided into a predetermined number; masking window generating means for generating masking windows for masking characters and symbols which are printed on an axially predetermined portion of the divided picked-up images of the inspected object; detecting window generating means for generating detecting windows for extracting portions on the axially predetermined portion of the divided picked-up images of the inspected object on which the characters and symbols are not printed; adding means for adding luminance excluding the luminance of the masking window for divided picked-up images each; and comparing means for comparing the added luminance with a predetermined threshold, wherein a portion where the added luminance exceeds the threshold is judged to be defective.
摘要翻译： 本发明涉及一种利用图像处理自动检测外表面异常，表面污物和圆柱形物体形状差的装置。 根据本发明的用于检查圆柱形物体的外观的装置包括：旋转装置，用于围绕圆柱形物体的轴线旋转圆柱形物体; 拾取装置，用于拾取显示被检查对象的外观的图像，其被轴向和周向地划分成预定数量; 掩蔽窗口产生装置，用于产生掩蔽窗口，用于掩蔽打印在被检查对象的划分的拾取图像的轴向预定部分上的字符和符号; 检测窗产生装置，用于产生检测窗口，用于提取未打印字符和符号的被检查物体的划分的拍摄图像的轴向预定部分上的部分; 添加用于分别除去所划分的拍摄图像的掩蔽窗口的亮度以外的亮度的装置; 以及用于将添加的亮度与预定阈值进行比较的比较装置，其中增加的亮度超过阈值的部分被判断为有缺陷。
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公开(公告)号：EP0548695A3
公开(公告)日：1995-04-05
申请号：EP92121085.2
申请日：1992-12-10
发明人： Futamura, Tsuyoshi, c/o Japan Tobacco Inc. , Suda, Hiroyoshi, c/o Japan Tobacco Inc. , Fujita, Minoru, Toshiba Engineering Corporation , Ichiba, Kouzou, Toshiba Engineering Corporation
CPC分类号： G06T7/0006 , A24C5/34 , G01N21/952 , G06T2207/10016 , G06T2207/30164
摘要： This invention relates to an apparatus for automatically inspecting abnormality in external surface, dirt on the surface, and poor shape of cylindrical objects by using image processing. The apparatus for inspecting the appearance of the cylindrical object according to the present invention comprises: rotating means for rotating the cylindrical object about an axis of the cylindrical object; picking up means for picking up images showing the appearance of the inspected object which are axially and circumferentially divided into a predetermined number; masking window generating means for generating masking windows for masking characters and symbols which are printed on an axially predetermined portion of the divided picked-up images of the inspected object; detecting window generating means for generating detecting windows for extracting portions on the axially predetermined portion of the divided picked-up images of the inspected object on which the characters and symbols are not printed; adding means for adding luminance excluding the luminance of the masking window for divided picked-up images each; and comparing means for comparing the added luminance with a predetermined threshold, wherein a portion where the added luminance exceeds the threshold is judged to be defective.
摘要翻译： 本发明涉及一种利用图像处理自动检测外表面异常，表面污物和圆柱形物体形状差的装置。 根据本发明的用于检查圆柱形物体的外观的装置包括：旋转装置，用于围绕圆柱形物体的轴线旋转圆柱形物体; 拾取装置，用于拾取显示被检查对象的外观的图像，其被轴向和周向地划分成预定数量; 掩蔽窗口产生装置，用于产生掩蔽窗口，用于掩蔽打印在被检查对象的划分的拾取图像的轴向预定部分上的字符和符号; 检测窗产生装置，用于产生检测窗口，用于提取未打印字符和符号的被检查物体的划分的拍摄图像的轴向预定部分上的部分; 添加用于分别除去所划分的拍摄图像的掩蔽窗口的亮度以外的亮度的装置; 以及用于将添加的亮度与预定阈值进行比较的比较装置，其中增加的亮度超过阈值的部分被判断为有缺陷。
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公开(公告)号：EP0548695B1
公开(公告)日：2000-04-05
申请号：EP92121085.2
申请日：1992-12-10
发明人： Futamura, Tsuyoshi, c/o Japan Tobacco Inc. , Suda, Hiroyoshi, c/o Japan Tobacco Inc. , Fujita, Minoru, Toshiba Engineering Corporation , Ichiba, Kouzou, Toshiba Engineering Corporation
CPC分类号： G06T7/0006 , A24C5/34 , G01N21/952 , G06T2207/10016 , G06T2207/30164
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