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US 2002/0118360 A1Published application
Glass container inspection machine
AssigneeEmhart Glass S.A.
InventorsRobert T. Shultz, William J. Furnas
Life of this patent
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Abstract
A machine for inspecting the wall of a bottle having a surface decoration made up of lines. A two dimensional camera receives a transmitted image of the surface decoration and a computer scans the pixels to determine an area of selected pixels in which a selected pixel threshold is located. The aspect ratio of the area of selected pixels is determined and a bottle reject signal is issued in the event that the determined aspect ratio exceeds a predetermined value.
Claims3
A machine for inspecting the wall of a bottle having a surface decoration made up of lines, comprising
- a two dimensional camera having an imaging surface which presents an image as an array of pixels,
- a lens system for receiving light transmitted from the surface decoration and directing the light to said imaging surface,
- a computer including
- means for scanning the pixels,
- means for determining an area of selected pixels in which a selected pixel threshold is located,
- means for determining the aspect ratio of the area of selected pixels, and
- means for issuing a bottle reject signal in the event that the determined aspect ratio exceeds a predetermined value.
4 more elements
Dependencies are inferred from the claim text.