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Today, when we need to mark 3D printed pieces to measure their properties, we typically groove them

with numbers that allow easy human part identification and tracking. While this strategy is very

useful for manual processing, is much less susceptible to be automated as indo-arabic figures were not

designed for automated detection.

There is also another difficulty in the process: the available space is short and we typically use just 2

or 3 figures that do not allow a full part identification.

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