1 October 1991 Fraud involving OVDs and possible security measures
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Proceedings Volume 1509, Holographic Optical Security Systems; (1991) https://doi.org/10.1117/12.47116
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands
Abstract
This paper will discuss the state of the art of optical variable devices (OVDs) as security elements, and the possibilities of fraud-criminals to counterfeit OVDs. The activities of criminals in this field will be reviewed. A few practical cases will be presented, and feasible solutions to protect OVDs against counterfeiting will be proposed.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dirk Schuurman, Dirk Schuurman, } "Fraud involving OVDs and possible security measures", Proc. SPIE 1509, Holographic Optical Security Systems, (1 October 1991); doi: 10.1117/12.47116; https://doi.org/10.1117/12.47116
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