Method and apparatus for assessing characteristics of liquids
First Claim
Patent Images
1. A system for determining a parameter of a liquid held in a container, said system comprising:
- a) an input for receiving X-ray image data obtained by scanning the container holding the liquid with X-rays;
b) a computer based logic module for;
i) processing the X-ray image data to derive path length data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container;
ii) processing the X-ray image data in combination with the path length data to determine the parameter;
c) an output to release data conveying the parameter.
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Abstract
A method to perform security screening at an airport on hand-carried baggage. The method includes requesting passengers with hand carried baggage to remove from the baggage a container that holds a liquid and perform an x-ray inspection on the hand carried baggage and on the container while the container remains outside the baggage. According to the method, the results of the x-ray inspection are used to determine if the baggage contains illegal objects and if the liquid is a security threat.
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Citations
32 Claims
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1. A system for determining a parameter of a liquid held in a container, said system comprising:
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a) an input for receiving X-ray image data obtained by scanning the container holding the liquid with X-rays; b) a computer based logic module for; i) processing the X-ray image data to derive path length data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container; ii) processing the X-ray image data in combination with the path length data to determine the parameter; c) an output to release data conveying the parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining a parameter of a liquid held in a container, said method comprising:
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a) receiving X-ray image data of the container holding the liquid, the X-ray image data being obtained by scanning the container holding the liquid with X-rays; b) processing the X-ray image data with a computer to; i) derive path length data at least in part based on the X-ray image data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container; ii) processing the X-ray image data in combination with the path length data to determine the parameter; c) releasing data conveying the parameter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A computer readable storage medium for storing a program element suitable for execution by a computing apparatus, said computing apparatus comprising a memory unit and a processor operatively connected to said memory unit, said program element when executing on said processor implementing a method for determining a parameter of a liquid held in a container comprising:
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a) receiving X-ray image data of the container holding the liquid, the X-ray image data being obtained by scanning the container holding the liquid with X-rays; b) processing the X-ray image data with a computer to; i) derive path length data at least in part based on the X-ray image data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container; ii) processing the X-ray image data in combination with the path length data to determine the parameter; c) releasing data conveying the parameter.
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19. A system for determining a parameter of a liquid held in a container, said system comprising:
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a) an input for receiving X-ray image data obtained by scanning the container holding the liquid with X-rays; b) a computer based logic module for; i) processing the X-ray image data to; (1) derive X-ray attenuation data indicative of a degree at which X-rays are attenuated by the liquid held in the container; (2) derive path length data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container; ii) deriving the parameter at least in part on the basis of the X-ray attenuation data and the path length data; c) an output to release data conveying the parameter. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method for determining a parameter of a liquid held in a container, said method comprising:
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a) receiving X-ray image data of the container holding the liquid, the X-ray image data being obtained by scanning the container holding the liquid with X-rays; b) processing the X-ray image data with a computer to; i) derive X-ray attenuation data, the X-ray attenuation data being indicative of a degree at which X-rays are attenuated by the liquid held in the container; ii) derive path length data, the path length data conveying an estimated length of a path followed by X-rays through the liquid held in the container; c) process the X-ray attenuation data and the path length data with the computer to derive the parameter; d) releasing data conveying the parameter from an output of the computer. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification