Automatic concealed object detection system having a pre-scan stage
US5182764A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Oct 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30112
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for detecting concealed objects, such as explosives, drugs, or other contraband is disclosed. The apparatus uses CT scanning to identify concealed objects with a density corresponding to the density of a target object such as explosives or drugs. To reduce the amount of CT scanning required, a number of prescanning approaches are disclosed. Based upon the prescan data, selected locations for CT scanning are identified. CT scanning is undertaken at the selected locations. The resultant CT scan data is utilized to automatically identify objects of interest. This identification of objects may be verified through further automatic analysis of such attributes as shape, texture, and context. Finally, the objects of interest may be reconstructed and displayed on a computer monitor for visual analysis by an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.