发明名称 |
METHOD AND DEVICE |
摘要 |
The invention concerns a method and a device for quality examination of through radiated security elements (16, 22) comprised in a valuable document by image analysis processing for the determination of its quality, dimensions and internal distances. The security element may specifically be a watermark. The quality of the security element (16, 22) is determined via statistical analysis, whereby this is determined via previously obtained statistics and via threshold values.
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申请公布号 |
WO0188860(B1) |
申请公布日期 |
2002.02.28 |
申请号 |
WO2001SE01077 |
申请日期 |
2001.05.15 |
申请人 |
BEGHELLO, LUCIANO;TOIVAKKA, MARTTI |
发明人 |
BEGHELLO, LUCIANO;TOIVAKKA, MARTTI |
分类号 |
G06T1/00;G07D7/12;(IPC1-7):G07D7/00 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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