X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1998-05-22
2000-01-25
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 57, G01N 2316
Patent
active
060185627
ABSTRACT:
An apparatus and method for automatic recognition and identification of concealed objects and features thereof, such as contraband in baggage or defects in articles of manufacture, is disclosed. The apparatus uses multiple energy X-ray scanning to identify targets with a spectral response corresponding to a known response of targets of interest. Detection sensitivity for both automatic detection and manual inspection are improved through the multiple-energy, multispectral technique. Multichannel processing is used to achieve high throughput capability. Target identification may be verified through further analysis of such attributes as shape, texture, and context of the scan data. The apparatus uses a statistical analysis to predict the confidence level of a particular target identification. A radiograph, CT image, or both may be reconstructed and displayed on a computer monitor for visual analysis by an operator. Finally, the apparatus may receive and store input from the operator for use in subsequent target identification.
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Moran John
Porta David P.
Sachs Michael
The United States of America as represented by the Secretary of
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