Sandrine Ceurstemont, editor, New Scientist TV
Firefighters can see through smoke thanks to thermal imaging helmets
but now, for the first time, they can also make out moving people trapped behind flames.
Created by Pietro Ferraro and colleagues from the National Institute of Optics in Pozzuoli, Italy, the system produces a live holographic movie that reconstructs motion hidden by a fire. In this video, you can see how an infrared camera fails to capture a person blocked by flames because it relies on a lens to produce an image. The holographic view, shown on the right, reproduces the obscured action by shining infrared laser light at it. The technique records information carried by rays reflected by objects or people, which is then decoded in real time to produce the live movie.
The team plans to make a device that houses both the laser and the holographic camera, allowing the system to be fixed inside buildings or tunnels. In addition to its use in fire search and rescue, the technique could also have biomedical applications, for example to monitor breathing or heartbeat.
If you enjoyed this video, see how a plane-mounted camera can detect volcanic ash or check out a holographic video of Princess Leia.
Live hologram reveals moving people trapped in a fire
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Live hologram reveals moving people trapped in a fire
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Live hologram reveals moving people trapped in a fire
