Detection of imperfections in precious stones
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United States of America Patent
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Issued Date -
Jun 2, 2005
app pub date -
Nov 28, 2003
filing date -
Nov 28, 2003
priority date (Note) -
Abandoned
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Abstract
A system for the inspection of a precious stone, including an energy transfer system for changing the temperature of the stone, at least one imaging device imaging the stone and outputting a thermal map of the stone, an image processing unit utilizing the thermal map to determine regions having changed emission in the thermal map, and an analyzing unit detecting at least one imperfection in the stone from the regions of changed emission.
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