Most airport X-ray machines currently in use only provide a 2D view of a bag’s contents. The new system, now at the working prototype stage, not only generates better images but also does so very quickly. This offers potential reductions in baggage processing times, which could help avoid flight delays.
The system is being developed by CXR, a research-led organisation set up by airport security specialist Rapiscan Systems. The
The 3 year project, ‘
Currently, conventional 2D luggage scanning systems may not be able to detect explosives blocked by denser objects. Furthermore, time-consuming manual checks are needed whenever a 2D image is inconclusive.
Although a small number of 3D systems have been introduced, they take three to four times longer to produce an image than a 2D system, because the X-ray source needs to be rotated very slowly around the bag. This leads to a significant interruption in a bag’s journey between check-in desk and aircraft.
Aiming to be as quick and cost-effective as a 2D device and faster than medical 3D scanners, CXR’s new system uses multiple X-ray sources simultaneously. The
team are working on special algorithms that, incorporated into the bespoke software and hardware, enable the separate 2D images produced to be combined into a single 3D image with the required speed and accuracy.
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