CPC G06K 19/06037 (2013.01) [G02B 5/12 (2013.01); G02B 5/124 (2013.01); G02B 5/305 (2013.01); G02B 5/3025 (2013.01); G06K 2019/0629 (2013.01)] | 13 Claims |
1. A system comprising:
a) an optical article that is deformable in the form of shrinking or expanding or both, comprising a data rich plurality of retroreflective elements that are configured in a spatially defined arrangement, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, wherein data rich means information that is readily machine interpretable;
b) an optical system; and,
c) an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.
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