Passive calibration board for alignment of VIS-NIR, SWIR and LWIR images
2017; Taylor & Francis; Volume: 14; Issue: 2 Linguagem: Inglês
10.1080/17686733.2017.1319529
ISSN2116-7176
AutoresLouis St-Laurent, Maxim Mikhnevich, Annie Bubel, Donald Prévost,
Tópico(s)Advanced Vision and Imaging
ResumoThis 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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