Fig. 3: Analysis of uniform distribution and randomness of outline circle patterns. | Nature Communications

Fig. 3: Analysis of uniform distribution and randomness of outline circle patterns.

From: Random laser ablated tags for anticounterfeiting purposes and towards physically unclonable functions

Fig. 3

a, b The number of outline circles per unit area of 0.01 mm2 and their uniform distribution for various HtDs and RAs. c, d Object orientation and extracted trend line distribution for RAs 13°, 33°, 53°, 73°, and 93° with 0.3 mm HtD. e, f RMSE of object orientation and extracted trend line distribution for RAs 13°, 33°, 53°, 73°, and 93° with HtDs 0.1 mm, 0.3 mm, 0.5 mm, and 0.7 mm.

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