Detection of surface irregularities in coins
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United States of America Patent
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Jan 26, 2021
Grant Date -
Jun 11, 2020
app pub date -
Jun 22, 2017
filing date -
Jun 23, 2016
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Abstract
Detection of surface irregularities in coins. Three-dimensional topographic data of at least one surface of a coin, having at least one feature, is acquired and used to determine characteristics of the coin features, based on vector components of normal vectors at various points on the surface of the coin. The feature characteristics are then compared to reference feature characteristics. Based on this comparison, an irregularity indication is provided if differences between the feature characteristics and the reference characteristics are found.
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