Contraband detection systems and methods
First Claim
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1. A system for detecting a barrel of a weapon in a container, the system comprising:
- a CT scanner operative to perform a CT scan of a container;
a conveyor for advancing a container through the CT scanner;
a host processor in communication with the CT scanner and operative to receive CT data from the CT scanner; and
a detection processor in communication with the host processor and operative to;
reconstruct slice data;
analyze the slice data to determine if at least one of a hollow circular shape and an oval shape of a known diameter exists, the shape being surrounded by metal or dense plastic;
if the shape does not exist, then determine if the detection processor has analyzed the last slice for the container;
if the detection processor has not analyzed the last slice for the container, then analyzing the next slice to determine if at least one of a hollow circular shape and an oval shape of a known diameter exists, the shape being surrounded by metal or dense plastic; and
if the detection processor has analyzed the last slice for the container, then determining that no weapon was found in the container.
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Abstract
In one embodiment, the present invention provides a CT scanner system for use in baggage screening at security checkpoints.
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Citations
1 Claim
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1. A system for detecting a barrel of a weapon in a container, the system comprising:
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a CT scanner operative to perform a CT scan of a container; a conveyor for advancing a container through the CT scanner; a host processor in communication with the CT scanner and operative to receive CT data from the CT scanner; and a detection processor in communication with the host processor and operative to; reconstruct slice data; analyze the slice data to determine if at least one of a hollow circular shape and an oval shape of a known diameter exists, the shape being surrounded by metal or dense plastic; if the shape does not exist, then determine if the detection processor has analyzed the last slice for the container; if the detection processor has not analyzed the last slice for the container, then analyzing the next slice to determine if at least one of a hollow circular shape and an oval shape of a known diameter exists, the shape being surrounded by metal or dense plastic; and if the detection processor has analyzed the last slice for the container, then determining that no weapon was found in the container.
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Specification
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Current AssigneeReveal Imaging Technologies, Inc. (Leidos Holdings, Inc.)
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Original AssigneeReveal Imaging Technologies, Inc. (Leidos Holdings, Inc.)
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InventorsBijjani, Richard Robehr, Scheinman, Elan D., Ellenbogen, Michael
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Primary Examiner(s)Yun; Jurie
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Application NumberUS10/588,138Publication NumberTime in Patent Office1,894 DaysField of Search378 4- 20, 378/57, 378/91, 378/98, 378/901, 382/132, 382/131US Class Current378/57CPC Class CodesG01N 2223/419 computed tomographG01N 23/046 using tomography, e.g. comp...G01V 5/226 using tomographyY10S 378/901 Computer tomography program...
