FIELD: physics.
SUBSTANCE: system comprises a reading module (110), a processing module (120), and a data base (130) containing the stored tag identity data. The spatial structure and the spectral characteristic are successively obtained with the image forming module (111) and the spectral module (112), respectively; the data obtaining is synchronized with different pulses of excitation light. The tag identity includes the use of the background image and the signal obtained by the image forming module (111) and the spectral module (112).
EFFECT: providing fast and reliable processing for authentication.
33 cl, 8 dwg
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