Quote:
Originally Posted by lowpopper
Sorry guys but this is nonsense.
A peripheral device authenticating cards? Aside from the storing of the image for
future comparisons, the only usable data that can be reliably extracted from
a scan are measurements for total size and centering.
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Ah, much more than that. Surface indentations and irregularities (indications of erasures), thickness, weight, florescence of the inks (like when folks use a black light), very small wrinkles, physical characteristics of the edges, foreign substances, etc. By using a sample of known good cards, an machine learning algorithm could be trained to detect abnormalities that are otherwise invisible to the human eye.
Think of it as looking at a card with a different set of eyes - highly magnified and sensitive to things that we don't normally see. Just like a bat sees objects at night when we cannot, or a dog detects smells that are beyond what we can smell. We don't use people to sniff for drugs, we use dogs.