GRSS Webinar: Airborne Thermal Infrared Hyperspectral Imaging for Mineral Mapping – Alexandrine Huot

Tuesday, February 13, 2018
11:00AM US Eastern Time

Video link


Our speaker is Alexandrine Huot, a Field Application Scientist for Telops, who will demonstrate the benefits of using thermal infrared hyperspectral imaging (TIR HSI) for mineral mapping during an airborne survey, in this case carried out over an open-pit mine in the Thetford Mines (Qc, Canada) area. The results show how the high spectral resolution data provided by the Telops Hyper-Cam airborne system facilitates temperature emissivity separation (TES) and atmospheric correction in order to retrieve a thermodynamic temperature map of the area and its associated spectral emissivity datacube. Mineral mapping of various minerals such as lizardite, serpentinite and quartz was achieved through linear unmixing of the emissivity data using reference emissivity curves found in spectral libraries. The results illustrate the potential of TIR HSI for airborne mapping of silicate minerals.


Alexandrine Huot graduated in chemistry (M. Sc. 2014) from Universite Laval (Quebec City). Alexandrine joined Telops in 2014 as an application scientist. Her expertise includes FT-IR spectroscopy.