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Research Articles

Passive calibration board for alignment of VIS-NIR, SWIR and LWIR images

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Pages 193-205 | Received 23 Oct 2016, Accepted 12 Apr 2017, Published online: 19 Jul 2017
 

Abstract

This paper presents a new non-electrically powered calibration rig designed for geometric calibration and spatial alignment of cameras operating in the VIS-NIR, SWIR and LWIR wavebands. Quantitative tests and experiments have been performed to identify materials, paint, varnish and configuration offering optimal properties in all wavebands. The performances obtained with this new rig were evaluated in terms of image contrast and corner detection ability. We demonstrate that the design is suitable to be used not only indoor, but also in outdoor environment with varying illumination (night, sunny and overcast day) and weather conditions (wind, cold temperature).

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