Scientific Results

Imaging live humans through smoke and flames using far-infrared digital holography

Year: 2013

Authors: Locatelli M., Pugliese E., Paturzo M., Bianco V., Finizio A., Pelagotti A., Poggi P., Miccio L., Meucci R., Ferraro P.

Autors Affiliation: CNR Istituto Nazionale di Ottica—Largo E. Fermi, 6 50125 Firenze, Italy;
CNR Istituto Nazionale di Ottica—Sezione di Napoli, Via Campi Flegrei, 34 80078 Pozzuoli (Napoli), Italy

Abstract: The ability to see behind flames is a key challenge for the industrial field and particularly for the safety field. Development of new technologies to detect live people through smoke and flames in fire scenes is an extremely desirable goal since it can save human lives. The latest technologies, including equipment adopted by fire departments, use infrared bolometers for infrared digital cameras that allow users to see through smoke. However, such detectors are blinded by flame-emitted radiation. Here we show a completely different approach that makes use of lensless digital holography technology in the infrared range for successful imaging through smoke and flames. Notably, we demonstrate that digital holography with a cw laser allows the recording of dynamic human-size targets. In this work, easy detection of live, moving people is achieved through both smoke and flames, thus demonstrating the capability of digital holography at 10.6 mu m. (C) 2013 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 21 (5)      Pages from: 5379  to: 5390

More Information: This research was funded by the MIUR (Italian Ministry for Research and University) within the PON project IT@CHA PON01_00980 Italian Technologies for Advanced Application in Cultural Heritage Assets.
KeyWords: Accident prevention; Computer generated holography; Continuous wave lasers, Digital holography; Far-infrared; Fire department; Industrial fields; Infrared range; Latest technology; Moving peoples; New technologies, Smoke, article; fire; holography; human; infrared radiation; methodology; smoke; three dimensional imaging, Fires; Holography; Humans; Imaging, Three-Dimensional; Infrared Rays; Smoke
DOI: 10.1364/OE.21.005379

Citations: 63
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English