Title:
METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO2001088860
Kind Code:
B1
Abstract:
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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Inventors:
BEGHELLO LUCIANO (SE)
TOIVAKKA MARTTI (LU)
TOIVAKKA MARTTI (LU)
Application Number:
PCT/SE2001/001077
Publication Date:
February 28, 2002
Filing Date:
May 15, 2001
Export Citation:
Assignee:
BEGHELLO LUCIANO (SE)
TOIVAKKA MARTTI (LU)
TOIVAKKA MARTTI (LU)
International Classes:
G06T1/00; G07D7/12; (IPC1-7): G07D7/00
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