Physical object identification using micro-structure images
Svyatoslav Voloshynovskiy, Maurits Diephuis, Taras Holotyak, Nabil Standardo · SPIE Newsroom · 2014
Micro-structures provide unique identifiers for physical objects, and since they can be optically detected with a mobile device, they can be applied in fields from security and forensics to anti-counterfeiting.