The Coin Grader Application is being developed to allow you to determine the estimated
grade of your coins. Building upon the MintState Coin Identifier application process,
the Coin Grading application uses a second level specially engineered alignment processes and
templates based on the coin's series, type, year and mint.
MintState's proprietary artificial intelligence systems then processes multi-layered
analysis results on both the obverse and reverse images of the coin. These results, combined with
series based logic algorithms, output a histogram of probabilities that your coin is of a
Thousands of hours have already been donated by MintState and key industry experts.
These hours have been used for data collection, image preparation, process research,
core programming and artificial intelligence training. The current results on the Morgan
Dollar series is an average accuracy ratings near 40% for exact grade matching
on certified samples.
Many more hours are still required to produce the commercial ready version of the
Coin Grading application. The initial version will grade only the Morgan Dollar coin series,
but additional series (in order of their collecting popularity) will see a later release.
Since the AI grading system is based on coin images where amateur photographers upload
their coin images with varying resolution, camera angles, degrees of focus and
lighting conditions, there will always be accuracy limitations compared to professional
"in-hand" grading services. That said, our goal is a close estimation of the raw coin grade to
assist users in determining estimated value and/or the need for certification.
MintState wants to thank all the programmers, coin experts and beta testers
who have donated their time and expertise towards the development of this application. Our combined efforts
will be available for the Free use in the coin community when completed. Thank you!
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