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Proceedings Paper

Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications
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Paper Abstract

Today, document counterfeiting is a global menace because of the advanced technologies available at ever decreasing prices. Instead of eschew the paper documents; applying efficient cost effective security methodologies are the feasible solutions. This paper reports a novel cost effective and simple optical technique using micro text encrypted optical variable device (OVD) threads, ultra-violet (UV) based optical invariable device (OID) patterns and artistic fonts for secure preparation of the documents and its forensic application. Applying any one of the above technique or together can effectively enhance the level of security of the most valuable document. The genuineness of the documents can be verified using simple decryption techniques.

Paper Details

Date Published: 5 May 2015
PDF: 6 pages
Proc. SPIE 9506, Optical Sensors 2015, 95060I (5 May 2015); doi: 10.1117/12.2179635
Show Author Affiliations
Sajan Ambadiyil, Ctr. For Development of Imaging Technology (India)
Jayan K. G, Ctr. for Development of Imaging Technology (India)
Radhakrishna Prabhu, The Robert Gordon Univ. (United Kingdom)
V. P. Mahadevan Pillai, Univ. of Kerala (India)


Published in SPIE Proceedings Vol. 9506:
Optical Sensors 2015
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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