Volumetric 3D x-ray imaging system for baggage inspection including the detection of explosives
First Claim
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1. A baggage inspection system, comprising:
- a support for baggage to be inspected;
at least one source of baggage penetrating radiation locatable at multiple positions with respect to the baggage support;
means for receiving said baggage penetrating radiation after it passes through baggage to obtain therefrom multiple images of the contents of said baggage from different angles of incidence; and
means for reconstructing said multiple images to provide volumetric 3D images of the content of the baggage.
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Abstract
A tomographic volumetric x-ray imaging system that uses either multiple x-ray sources in a fixed configuration or a single source that can be shifted to provide a plurality of incident aspect angles. A combination of volumetric x-ray image data and multi-energy image acquisition provides an effective method for high confidence explosives detection within baggage or parcels.
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Citations
44 Claims
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1. A baggage inspection system, comprising:
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a support for baggage to be inspected;
at least one source of baggage penetrating radiation locatable at multiple positions with respect to the baggage support;
means for receiving said baggage penetrating radiation after it passes through baggage to obtain therefrom multiple images of the contents of said baggage from different angles of incidence; and
means for reconstructing said multiple images to provide volumetric 3D images of the content of the baggage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A baggage inspection system, comprising:
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a conveyor belt for baggage to be inspected;
a bank of multiple sources of x-ray radiation locatable at multiple predetermined positions with respect to the baggage support, each directed to baggage on the support from a different angle of incidence oblique to the baggage and sequentially actuated;
a plurality of translatable carriages below said conveyor belt, each carrying a linear detector array for receiving said x-ray radiation after it passes through baggage to obtain therefrom multiple images of the contents of said baggage from different angles of incidence; and
means for reconstructing said multiple images by tomosynthesis to provide volumetric 3D images of the content of the baggage. - View Dependent Claims (20)
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21. A method for inspecting baggage, comprising:
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passing baggage penetrating radiation through baggage to be inspected from multiple locations;
receiving said baggage penetrating radiation after it passes through baggage to obtain therefrom multiple images of the contents of said baggage from different angles of incidence; and
reconstructing said multiple images to provide volumetric 3D images of the content of the baggage. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for inspecting baggage, comprising:
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passing x-ray radiation through baggage to be inspected from x-ray sources at multiple predetermined locations each directed to the baggage from a different angle of incidence oblique to the baggage and sequentially actuated;
receiving said baggage penetrating radiation by at least one translatable linear detector array after the radiation passes through the baggage to obtain therefrom multiple images of the contents of said baggage from different angles of incidence; and
reconstructing said multiple images by tomosynthesis to provide volumetric 3D images of the content of the baggage. - View Dependent Claims (39, 40, 41, 42, 43, 44)
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Specification