Cargo security inspection method and system based on spiral...

Details Cargo security inspection method and system based on spiral... Cargo security inspection method and system based on spiral...

2007-05-08

2009-08-04

Yun, Jurie (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Absorption

C378S015000, C378S901000

Reexamination Certificate

active

07570737

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.

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International Search Report in PCT/CN2007/001459, Aug. 9, 2007 (English Translation) 3 pages.

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