APPARATUS AND METHOD FOR CHARACTERIZING ITEMS OF CURRENCY

摘要

In one aspect, a validation apparatus comprises a light source capable of emitting a broadband spectrum of light for illuminating an item of currency. The validation apparatus also includes a receiver configured to receive light emitted from the light source. In another aspect, the validation apparatus also includes a transportation unit configured to transport the item of currency within the validation apparatus. In a further aspect, the validation apparatus also includes a processor configured to reconstruct a spectral response of the item of current. In this design, the light received by the receiver comprises at least a portion of light reflected by or transmitted through the item of currency.