Image analysis – Histogram processing – For setting a threshold
Patent
1991-02-22
1993-06-15
Couso, Jose
Image analysis
Histogram processing
For setting a threshold
382 8, 382 48, 358101, 358106, 358107, G06K 900
Patent
active
052206149
ABSTRACT:
A method and system for automated grading of coins involves alignment of a target image of the coin with a reference image by mechanically moving the coin until the target and reference images are aligned, capture of multiple images of the coin under a variety of lighting conditions, and subsequent grading using an expert script made up of individual directives which can be arranged to form different scripts for different grading standards and types of coins to be graded. The system and method provide for identification of the criteria used by an expert in grading an object such as a coin, capture of those criteria, and applying the criteria to the grading of the coin in a manner which is implementable on low-cost and widely available microcomputer hardware. The process by which the system is used to identify and test the criteria for evaluating the coin is interactive, and thus, structural changes need not be made in the system in order to grade the different types of coins or apply different coin grading standards.
REFERENCES:
patent: 3349612 (1967-10-01), Sherman
patent: 4148388 (1979-04-01), Reyner et al.
patent: 4191472 (1980-03-01), Mason
patent: 4309111 (1982-01-01), Sobresky, Sr.
patent: 4555798 (1985-11-01), Broadbent, Jr. et al.
patent: 4668982 (1987-05-01), Tinnerino
patent: 4679075 (1987-07-01), Williams et al.
patent: 4726458 (1988-02-01), Gati
patent: 4757550 (1988-07-01), Uga
patent: 4811040 (1989-03-01), Madsen
patent: 4819780 (1989-04-01), Trummer et al.
patent: 4899392 (1990-02-01), Merton
patent: 4929893 (1990-05-01), Sato et al.
patent: 4943767 (1990-07-01), Yokota
patent: 5050111 (1991-09-01), Ayata et al.
Couso Jose
Professional Coin Grading Service, Inc.
LandOfFree
Automated coin grading system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automated coin grading system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated coin grading system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1048868