Method and system for performing X-ray inspection of a liquid product at a security checkpoint
First Claim
1. A method for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, the method comprising:
- a) receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus;
b) processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises;
i) processing the X-ray image data to derive geometric information associated with the bottle;
ii) processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle; and
iii) deriving the level of fill of the bottle at least in part based on the location information associated with the meniscus and the geometric information associated with the bottle;
c) determining the threat status of the liquid product at least in part based on the derived level of fill of the bottle;
d) releasing information conveying the determined threat status of the liquid product.
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Accused Products
Abstract
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, 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.
144 Citations
37 Claims
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1. A method for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, the method comprising:
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a) receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; b) processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises; i) processing the X-ray image data to derive geometric information associated with the bottle; ii) processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle; and iii) deriving the level of fill of the bottle at least in part based on the location information associated with the meniscus and the geometric information associated with the bottle; c) determining the threat status of the liquid product at least in part based on the derived level of fill of the bottle; d) releasing information conveying the determined threat status of the liquid product. - View Dependent Claims (2, 3, 4, 11, 12)
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5. A method for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, the method comprising:
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a) receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; b) processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises; i. processing the X-ray image data to derive geometric information associated with the bottle at least in part based on an angle made between a longitudinal axis of the bottle and a horizontal plane; ii. processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle at least in part based on the angle made between the longitudinal axis of the bottle and the horizontal plane; c) determining the threat status of the liquid product at least in part based on the derived level of fill of the bottle; d) releasing information conveying the determined threat status of the liquid product. - View Dependent Claims (6, 7, 8, 9, 10)
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13. A non-transient computer readable storage medium storing a program element suitable for execution by a computing apparatus for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, said computing apparatus comprising:
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a) a memory unit; b) a processor operatively connected to said memory unit, said program element when executing on said processor being operative for; i) receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; c) processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises; i) processing the X-ray image data to derive geometric information associated with the bottle; ii) processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle; and iii) deriving the level of fill of the bottle at least in part based on the location information associated with the meniscus and the geometric information associated with the bottle; iv) determining the threat status of the liquid product at least in part based on the derived level of fill of the bottle; v) releasing information conveying the determined threat status of the liquid product. - View Dependent Claims (30, 31, 32, 33, 34)
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14. An apparatus for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, said apparatus comprising an input, a processing unit and an output, said apparatus comprising:
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a) an input for receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; b) a processor in communication with said input, said processor being programmed to; i) process the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises; (1) processing the X-ray image data to derive geometric information associated with the bottle; (2) processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle; and (3) deriving the level of fill of the bottle at least in part based on the location information associated with the meniscus and the geometric information associated with the bottle; and ii) determine the threat status of the liquid product at least in part based on the derived level of fill of the bottle; c) an output for releasing information conveying the determined threat status of the liquid product. - View Dependent Claims (35, 36, 37)
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15. A system suitable for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, said system comprising:
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a) an inspection device for performing an X-ray inspection on the liquid product using penetrating radiation to generate an X-ray image of the liquid product, wherein the inspection device is a multi-view X-ray machine; b) an apparatus for assessing the threat status of the liquid product, said apparatus comprising; i) an input for receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; ii) a processor in communication with said input, said processing being programmed to; (1) process the X-ray image data to derive information conveying a level of fill of the bottle; and (2) determine the threat status of the liquid product at least in part based on the level of fill of the bottle; iii) an output for releasing information conveying the determined threat status of the liquid product; c) a display screen in communication with the output of said apparatus for visually conveying to an operator the assessed threat status of the liquid product based on information released by the apparatus.
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16. A method for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid and wherein the bottle holding the liquid has a top extremity and a bottom extremity, the method comprising:
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a) positioning the bottle to induce a meniscus formed by the liquid in the bottle to migrate toward one of the extremities; b) while the bottle is positioned to induce the meniscus formed by the liquid in the bottle to migrate toward one of the extremities, performing an X-ray scan of the liquid product using an X-ray imaging apparatus to obtain X-ray image data conveying an image of the liquid product; c) processing the X-ray image data to derive information conveying a level of fill of the bottle; d) determining the threat status of the liquid product at least in part based on the level of fill of the bottle; e) releasing information conveying the determined threat status of liquid product. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, said apparatus comprising:
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a) means for receiving X-ray image data associated with the liquid product, the X-ray image data being obtained by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; b) means for processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle comprises; (1) processing the X-ray image data to derive geometric information associated with the bottle; (2) processing the X-ray image data to derive location information associated with a meniscus formed by the liquid in the bottle; and (3) deriving the level of fill of the bottle at least in part based on the location information associated with the meniscus and the geometric information associated with the bottle; c) means for determining the threat status of the liquid product at least in part based on the level of fill of the bottle; d) means for releasing information conveying the determined threat status of liquid product.
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26. A method for assessing a threat status of a liquid product at a security checkpoint, the liquid product being comprised of a bottle holding a liquid, wherein the bottle is at least partially filled with liquid, the method comprising:
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a) receiving X-ray image data associated with the liquid product conveying an image of the liquid product, the X-ray image data being derived by performing an X-ray scan of the liquid product using an X-ray imaging apparatus; b) processing the X-ray image data to derive information conveying a level of fill of the bottle, wherein processing the X-ray image data to derive information conveying the level of fill of the bottle includes simulating X-ray responses of a virtual model of the container for different candidate levels of fill; c) determining the threat status of the liquid product at least in part based on the derived level of fill of the bottle; d) releasing information conveying the determined threat status of the liquid product. - View Dependent Claims (27, 28, 29)
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Specification