System and method for inspecting containers with openings

G - Physics – 01 – N

Patent

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G01N 21/90 (2006.01)

Patent

CA 2416073

A system and method of the present invention allows the inspection of an object having an annular opening, such as a container or can, and uses a plurality of cameras that acquire grayscale images of arcuate sectors that together comprise a circumferential area within the opening. A processor is connected to the plurality of cameras for receiving the grayscale images and determining defects within the container based on contrast differences and grayscale intensity. The invention allows smart analysis of defects using qualitative inspections and quantitative measurements at higher speeds.

L'invention concerne un système et un procédé d'inspection d'un objet possédant une ouverture annulaire, tel qu'un conteneur ou une boîte métallique, utilisent plusieurs caméras qui prennent des images en niveaux de gris de secteurs arqués qui ensemble comporte une zone périphérique à l'intérieur de l'ouverture. Un processeur est relié aux caméras en vue de recevoir les images en niveaux de gris et de déterminer les défauts à l'intérieur du conteneur en s'appuyant sur les différences de contraste et d'intensité des niveaux de gris. L'invention permet une analyse efficace et plus rapide des défauts grâce à des inspections de qualité et des mesures de quantité.

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