Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-08-30
1992-03-10
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, G01N 904
Patent
active
050952048
ABSTRACT:
A system and method for optical inspection of the bottom surfaces of transparent containers comprises an image acquiring means, an illumination source and means for processing, storing and analyzing the image to search for and identify a baffle mark in the acquired image, and when found, to remove or erase the baffle mark from the image memory prior to the defect inspection process. Significant defects present in the area of the image being searched can be identified, even if the defects are located directly on the baffle mark, thus providing high sensitivity capabilities for defect detection while maintaining a low false rejection rate due to baffle marks.
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Alberding Gilbert E.
Ball Corporation
Nelms David C.
Shami Khaled
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