Detection and integration of security devices in documents
Rudolf L. van Renesse, Jan van den Berg, Ralph Tadema Wielandt · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1990
The Netherlands Organization for Applied Scientific Research TNO is frequently approached by trade and industry with requests to develop security systems, automated security inspection machines and to test the resistance of security documents and security devices against fraud. This article presents various TNO activities in this field and discusses some ideas developed as a result of the research involved.