Apparatus and method for checking of containers
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United States of America Patent
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Jul 19, 2011
Grant Date -
Nov 27, 2008
app pub date -
Aug 1, 2005
filing date -
Jul 30, 2004
priority date (Note) -
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Abstract
A method for detecting one or more foreign substances in one or more containers filled with liquid, comprising of: transporting the containers filled with liquid in a substantially straight line at relatively high speed in a production environment; —illuminating each container with content with one or more fixedly disposed light sources; and —inspecting the container with content from preferably two or more different orientations using two or more cameras, wherein cameras and lighting are disposed substantially fixedly relative to each other, while the cameras and light sources are mutually connected such that in a short time two or more images of a container filled with liquid can be recorded with mutually differing illumination and/or angle of incidence; —comparing the foreign substances in the two or more images; and —wherein a container filled with liquid is rejected on the basis of the probability distribution obtained from the comparisons, wherein above a determined probability it is concluded that the foreign substance is a glass particle or other undesirable particle.
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