G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 23/04 (2006.01)
Patent
CA 2709468
A method, an apparatus and a system are provided for assessing at a security checkpoint the threat status of a liquid product, where the liquid product is comprised of a bottle at least partially filled with liquid. In accordance with a broad aspect aspect, the level of fill is used as a factor in the determination of the threat status of the liquid product. In accordance with another broad aspect, an X-ray image of the liquid product is obtained and processed to derive a level of fill of the bottle and the threat status of the liquid product is determined at least in part based on the level of fill of the bottle. In accordance with yet another broad aspect, an X-ray image of the liquid product is processed to derive location information associated with a meniscus formed by the liquid in the bottle. An estimated length of a path followed by X-rays through the liquid held in the bottle is derived in part based on the location information and is used to determine the threat status of the liquid product.
La présente invention concerne une méthode et un appareil pour évaluer l'état de menace d'un produit liquide à un poste de contrôle de sûreté, où ledit produit comprend une bouteille au moins partiellement remplie de liquide. Selon un aspect large de l'invention, le niveau de remplissage sert de facteur pour déterminer l'état de menace du produit liquide. Selon un autre aspect large de l'invention, une image à rayons X du produit liquide est obtenue et traitée afin de déterminer le niveau de remplissage de la bouteille. Selon encore un autre aspect de l'invention, une image à rayons X du produit liquide est traitée afin d'obtenir des informations sur l'emplacement d'un ménisque formé par le liquide dans la bouteille. Une longueur estimative du cheminement des rayons X à travers le liquide contenu dans la bouteille est obtenue en partie sur la base des informations d'emplacement, et sert à déterminer l'état de menace du produit liquide.
Bouchard Michel
Bourbeau Eric
Gudmundson Dan
Optosecurity Inc.
Smart & Biggar
LandOfFree
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