发明名称 |
Method and system for inspecting packages |
摘要 |
A method and system for verifying the presence of a lens in a transparent package. The method comprises the steps of moving the package into an inspection position, and conducting a light beam through the package and onto an image plane to form an image of the package on the image plane. The method further comprises the steps of generating a set of signals representing the image on the image plane, and analyzing those signals to determine whether a lens is present in the package. This analyzing step, in turn, includes the steps of searching the package image for images of discrete objects; and for each object image found in the package image, identifying values for a plurality of parameters, and analyzing those identified values according to a predetermined procedure to identify the object as a lens or as not a lens. A lens present signal is generated if one object image found in the package image is identified as a lens; and a lens missing signal is generated if no object images are found in the package image, or if all object images found in the package image are identified as not lenses.
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申请公布号 |
US5943436(A) |
申请公布日期 |
1999.08.24 |
申请号 |
US19960726502 |
申请日期 |
1996.10.07 |
申请人 |
JOHNSON & JOHNSON VISION PRODUCTS, INC. |
发明人 |
EBEL, JAMES;WIDMAN, MICHAEL FRANCIS;SITES, PETER W.;DEHKORDI, PEYMAN H. |
分类号 |
G01V8/10;B65B25/00;B65B57/10;G01M11/00;G01N21/88;G01N21/90;G01N21/95;(IPC1-7):G06K9/62 |
主分类号 |
G01V8/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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