X-ray computed tomography (CT) system for detecting thin objects
US5905806A · kind A · utility
64Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | May 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/419
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique to ascertain the presence or absence of an object in a three-dimensional volume, such as explosives in the side walls of luggage. The technique involves radiation scanning the three-dimensional volume to determine a property of each of a plurality of voxels representing the three-dimensional volume and to identify voxels having similar values of the property to identify a contiguous group of voxels having the similar values. Then, the contiguous group of voxels is identified as containing the object if a characteristic (such as mass and/or volume) of the contiguous group has a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.