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Proceedings Paper

Testbed for thermal imager characterization using an infrared scene projector
Author(s): Michael Koerber; Daniel Wegner; Bastian Schwarz; Gunnar Ritt; Stefan Kessler; Bernd Eberle
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Paper Abstract

Based on previous work on thermal imager performance analysis at Fraunhofer IOSB using specific scenes and patterns, we present our advances in setting up a testbed for thermal imager characterization with a MIRAGE™ XL infrared scene projector.

In the first part, we outline the experimental setup of our testbed. It allows for mimicking infrared imaging of real scenes in a controlled laboratory environment. We describe the process of dynamic infrared scene generation as well as the physical limitations of our scene projection setup.

A second part discusses ongoing and future applications. This testbed extends our standard lab measurements for thermal imagers by a image based performance analysis method. Scene based methods are necessary to investigate and assess advanced digital signal processing (ADSP) algorithms which are becoming an integral part of thermal imagers. We use this testbed to look into inferences of unknown proprietary ADSP algorithms by choosing suitable test scenes.

Furthermore, we investigate the influence of dazzling on thermal imagers by coupling infrared laser radiation into the projected scene. The studies allow to evaluate the potential and hazards of infrared dazzling and to describe correlated effects. In a future step, we want to transfer our knowledge of VIS/NIR laser protection into the infrared regime.

Paper Details

Date Published: 9 October 2018
PDF: 14 pages
Proc. SPIE 10795, Electro-Optical and Infrared Systems: Technology and Applications XV, 107950K (9 October 2018); doi: 10.1117/12.2325106
Show Author Affiliations
Michael Koerber, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Daniel Wegner, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Bastian Schwarz, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Gunnar Ritt, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Stefan Kessler, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Bernd Eberle, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)


Published in SPIE Proceedings Vol. 10795:
Electro-Optical and Infrared Systems: Technology and Applications XV
David A. Huckridge; Helge Bürsing; Duncan L. Hickman, Editor(s)

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