Cargo security inspection method and system based on spiral scanning
US7570737B2 · kind B2 · utility
3Cited by
8References
22Claims
0Family size
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Key dates
| Filing date | May 8, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | May 8, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cargo security inspection method and system based on spiral scanning, the method including: spirally scanning an inspected object at a first precision to obtain the transmission projection data; judging whether there is a suspect area in the inspected area; scanning at least one slice of the suspect area at a second precision wherein the second precision is greater than the first precision; reconstructing a tomographic image of the at least one slice; and using the reconstructed tomographic image to judge whether there is any dangerous article in the suspect area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.