MULTISPECTRAL VERIFICATION PRINTED TICKETS WITH THE HELP OF INFRAREDESIGN® AND TWO AZTEC CODES
Authors: SILVIO PLEHATI, ALEKSANDRA BERNAŠEK PETRINEC, TOMISLAV BOGOVIĆ, JANA ŽILJAK GRŠIĆ, IVANA ŽILJAK STANIMIROVIĆ
School: Zagreb University of Applied Sciences
Country: CROATIA
e-mail: splehati@tvz.hr
This paper presents a multispectral printed ticket authentication system that combines principles
Infraredesign® technologies, cryptographically linked two-dimensional codes and computer vision for verification. In the same physical space of the ticket, two Aztec codes are integrated – one visible in the visible spectrum and the other hidden in the near-infrared (NIR) spectrum. Codes have been generated algorithmically and deterministically linked, enabling hierarchical authentication.
The system is realized by standard CMYK printing, without special dyes or additional production steps, and is shown on the example of tickets for national parks.
