GemHunt / CoinSorter

Sorts coins by solenoid on a conveyor by classifying images with Caffe & DIGETS
MIT License
46 stars 2 forks source link

Automatically correlate coin regions/features by date and mint mark #42

Closed pkrush closed 6 years ago

pkrush commented 9 years ago

This is really cool that this system is going to be able to do this very soon!

Over the years there have been small changes in the (same)designs of coins. I don’t know that much about it. I am guessing current designs are more cost effective to produce. Maybe they use less die force, I don’t know. And really I don’t want to learn what has changed; I don’t want to be bias in what I am looking for. I want the software to discover this. For example the spacing of “AM” in AMERICA is different on the back of US Lincoln pennies after 1992.

Having a large database of coin images and knowing their date and mint mark one could correlate regions on both sides of the coin. You could make thousand maps of what correlates to what does not. Most of it will be meaningless, but some correlations of regions will be quite interesting.

This is pretty neat in and of itself. What is even more awesome is you can use this to find new transitional varieties of coins. Relatively speaking this is not hard to do. I think it’s a pretty obvious next step after getting dates and mint marks.