Design and calibration of a two-camera (VNIR and SWIR) hyperspectral acquisition system for the characterization of metallic alloys from the recycling industry

This paper presents the considerations taken during the conception of a prototype combining two hyperspectral cameras (VNIR and SWIR), dedicated to the characterization of metallic alloys fine-sized particles, coming from end-of-life vehicles and electric and electronic equipment wastes, as well as the calibration steps necessary to obtain quality reflectance data. Classification results obtained on a data-set of 100 metallic fragments, previously characterized with XRF technology, are also presented.