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19 April 2002 Evaluation of DOVID security under first-line inspection
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Proceedings Volume 4677, Optical Security and Counterfeit Deterrence Techniques IV; (2002)
Event: Electronic Imaging, 2002, San Jose, California, United States
The relative value of optical security features submitted to 1st line inspection - performed by the layman - depends on how easily they are memorized, recognized and identified. The relative security value of different Diffractive Optically Variable Image Devices (DOVID), under this type of inspection, depends on the same criteria taking specific forms for such kind of dense and dynamical visual elements. For DOVID, the relevant security components include image complexity, resemblance to other images, easiness of inspection, interconnection to product characteristics, and others. In this paper we review and analyze such kind of properties and how they can be used to implement a quantitative measure of the 1st line security value of DOVID, encompassing a number of constrains and specifications derived from human ergonomic factors. These insights are integrated in a broader context of an evaluation model of the security value of DOVID, elaborated through Multicriteria Decision Analysis methodologies, already assessed for 2nd line inspection.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ana Alexandra Andrade and Jose Manuel Rebordao "Evaluation of DOVID security under first-line inspection", Proc. SPIE 4677, Optical Security and Counterfeit Deterrence Techniques IV, (19 April 2002);


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