Image analysis – Histogram processing – For setting a threshold
Patent
1992-07-01
1993-06-29
Couso, Jose L.
Image analysis
Histogram processing
For setting a threshold
382 1, 356371, G06K 968
Patent
active
052241769
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: 4191472 (1980-03-01), Mason
patent: 4309111 (1982-01-01), Sobresky, Sr.
patent: 4811040 (1989-03-01), Madsen
patent: 4899392 (1990-02-01), Merton
patent: 5020112 (1991-05-01), Chou
patent: 5067162 (1991-11-01), Driscoll, Jr. et al.
patent: 5067166 (1991-11-01), Ito
patent: 5119438 (1992-07-01), Ueda et al.
patent: 5133019 (1992-07-01), Merton et al.
Couso Jose L.
Professional Coin Grading Service, Inc.
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