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1. WO2010025539 - METHOD AND SYSTEM FOR PERFORMING X-RAY INSPECTION OF A LIQUID PRODUCT AT A SECURITY CHECKPOINT

Publication Number WO/2010/025539
Publication Date 11.03.2010
International Application No. PCT/CA2009/000395
International Filing Date 27.03.2009
IPC
G01N 23/04 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/-G01N17/178
02by transmitting the radiation through the material
04and forming images of the material
G01F 23/288 2006.1
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284Electromagnetic waves
288X-rays; Gamma rays
G01N 23/10 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/-G01N17/178
02by transmitting the radiation through the material
06and measuring the absorption
10the material being confined in a container, e.g. in luggage X-ray scanners
CPC
G01F 23/288
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28by measuring the variations of parameters of electric or acoustic waves applied directly to the liquid or fluent solid material
284Electromagnetic waves
288X-rays; Gamma rays ; or other forms of ionising radiation
G01N 2001/024
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
1Sampling; Preparing specimens for investigation
02Devices for withdrawing samples
022sampling for security purposes, e.g. contraband, warfare agents
024passengers or luggage
G01N 2223/637
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2223Investigating materials by wave or particle radiation
60Specific applications or type of materials
637liquid
G01N 2223/639
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2223Investigating materials by wave or particle radiation
60Specific applications or type of materials
639material in a container
G01N 23/00
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00G01N17/00, G01N21/00 or G01N22/00
G01N 23/04
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00G01N17/00, G01N21/00 or G01N22/00
02by transmitting the radiation through the material
04and forming images of the material
Applicants
  • OPTOSECURITY INC. [CA]/[CA] (AllExceptUS)
  • BOUCHARD, Michel [CA]/[CA] (UsOnly)
  • GUDMUNDSON, Dan [CA]/[CA] (UsOnly)
  • BOURBEAU, Eric [CA]/[CA] (UsOnly)
Inventors
  • BOUCHARD, Michel
  • GUDMUNDSON, Dan
  • BOURBEAU, Eric
Agents
  • SMART & BIGGAR
Priority Data
61/094,74305.09.2008US
61/097,06015.09.2008US
61/151,24210.02.2009US
PCT/CA2008/00202517.11.2008CA
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND SYSTEM FOR PERFORMING X-RAY INSPECTION OF A LIQUID PRODUCT AT A SECURITY CHECKPOINT
(FR) PROCÉDÉ ET SYSTÈME D’EXÉCUTION D'UNE INSPECTION AUX RAYONS X D'UN PRODUIT LIQUIDE À UN POSTE DE CONTRÔLE DE SÉCURITÉ
Abstract
(EN) 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.
(FR) L'invention porte sur un procédé, sur un appareil et sur un système pour évaluer à un poste de contrôle de sécurité le degré de menace d'un produit liquide, le produit liquide étant composé d'une bouteille au moins partiellement remplie d'un liquide. Selon un aspect général, le niveau de remplissage est utilisé comme facteur dans la détermination du degré de menace du produit liquide. Selon un autre aspect général, une image aux rayons X du produit liquide est obtenue et traitée pour déduire un niveau de remplissage de la bouteille, et le degré de menace du produit liquide est déterminé au moins en partie sur la base du niveau de remplissage de la bouteille. Selon encore un autre aspect général, une image aux rayons X du produit liquide est traitée pour déduire des informations de localisation associées à un ménisque formé par le liquide dans la bouteille. Une longueur estimée d'un trajet suivi par des rayons X à travers le liquide contenu dans la bouteille, qui est déduite en partie sur la base des informations de localisation, est utilisée pour déterminer le degré de menace du produit liquide.
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