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PCGS' Computer Grading Patent

MrEurekaMrEureka Posts: 24,479 ✭✭✭✭✭
in U.S. Coin Forum
Stumbled across this. Some of you may be interested.

PCGS' patent for "Automated Coin Grading" can be viewed here.

One day, someone's going to pull this off!
Andy Lustig

Doggedly collecting coins of the Central American Republic.

Visit the Society of US Pattern Collectors at USPatterns.com.

Comments

  • foodudefoodude Posts: 3,583 ✭✭✭
    Looks like they have at least two patents. Another is U.S. Patent No. U.S. Pat. No. 5,220,614- I'll post a link later if no one else does so in the meantime.

    One day, someone's going to pull this off!

    Maybe some time after the patents expireimage They have less than half there term (life) left.

    Greg Allen Coins, LLC Show Schedule: https://forums.collectors.com/discussion/573044/our-show-schedule-updated-10-2-16 Authorized dealer for NGC, PCGS, CAC, and QA. Member of PNG, RTT (Founding Platinum Member), FUN, MSNS, and NCBA (formerly ICTA); Life Member of ANA and CSNS. NCBA Board member. "GA3" on CCE.
  • LeeGLeeG Posts: 12,162 ✭
    Very Interesting. Been many years since this was put on paper. I wonder if PCGS has anyone dedicated to it's implementation? This system would be fine for "Technical" grading but how would it take into account the lustre and "Eye Appeal" of a coin. Would the coin go to Graders after the Computer gives a "Technical" grade for an additional designation of some sort?
  • kieferscoinskieferscoins Posts: 10,017 ✭


    << <i>I wonder if PCGS has anyone dedicated to it's implementation? >>



    They used it back in the early 90's and then stopped.

    Link to some info

    Cameron Kiefer
  • JulianJulian Posts: 3,370 ✭✭✭
    Is this the Compugrade product??
    PNG member, numismatic dealer since 1965. Operates a retail store, also has exhibited at over 1000 shows.
    I firmly believe in numismatics as the world's greatest hobby, but recognize that this is a luxury and without collectors, we can all spend/melt our collections/inventories.

    eBaystore
  • MacCrimmonMacCrimmon Posts: 7,058 ✭✭✭


    << <i>A useful measure of the correlation needed to maintain present standards is that the correlation between grades given by an automated system and by a human expert should be the same as the correlation between two different human expert graders. An automated coin grading system would be considered to be acceptable if, for example, two different experts agreed upon a grade 93% of the time and the automated system agreed with each expert at least 93% of the time. >>



    93%

    Hey, that would be a good correlation goal for just human graders, eh.image


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