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Contraband detection systems and methods

  • US 7,702,068 B2
  • Filed: 02/11/2005
  • Issued: 04/20/2010
  • Est. Priority Date: 02/11/2004
  • Status: Active Grant
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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