PROBLEM TO BE SOLVED: To provide a coin discrimination device capable of accurately and rapidly discriminating authenticity of a coin (medal) or the like used in an amusement facility.;SOLUTION: This coin discrimination device is provided with: a read part for creating a pattern of a coin; a first pattern record part for recording a pattern of a first coin or a coin needing determination of authenticity; a second pattern record part for recording a pattern of a second coin; a correlation calculation part for finding a correlation value of a pattern pixel by pixel; a region extraction part for extracting a region having a character based on the calculation result calculated by the correlation calculation part; a reference pattern record part for recording a region matching to the region having the character as a reference pattern; a partial correlation calculation part for calculating a correlation value between the determination needing pattern and the reference pattern in relation to the region having the character; and a determination part for determining the coin needing the determination of authenticity based on the correlation value calculated by the partial correlation calculation part.;COPYRIGHT: (C)2004,JPO
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