Apparatus and method for automatic recognition of concealed objects using multiple energy computed tomography
US6018562A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1998 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/087
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.