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US 12,385,846 B2Granted
Digital image gemstone verification with filters
AssigneeGemological Institute of America, Inc. (GIA)
InventorsJongsik Kim, Sudhin Mandal
Life of this patent
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Abstract
Systems and methods here may be used for capturing images of sample gemstones under structured, filtered illumination for later comparison and image matching for authentication using networked computer systems.
Claims19
A method comprising:
- by a computer with a processor and memory, the computer in communication with a networked comparison server computer, a digital camera and a structured, filtered light source,
- causing the light source illuminate gemstone in a holder, wherein the gemstone includes an inscription, and wherein the light source includes a structured filter;
- by the computer, receiving a digital image of the gemstone and at least one identifier for the gemstone;
- by the computer, retrieving at least one previously stored digital image and its identifier using the received identifier, wherein the previously stored image and its identifiers includes an inscription on a gemstone and its unique features;
- by the computer, comparing the received digital image of the gemstone and/or identifiers with the at least one previously stored digital image retrieved using the identifier(s),
- wherein the comparing the received digital image of the gemstone and/or identifier(s) with the at least one previously stored digital image retrieved using the identifier(s);
- if the comparison matches, indicating to a user interface, a match;
- and
- if the comparison does not match, indicating to the user interface, no match.
6 more elements
Dependencies are inferred from the claim text.