Optical detection of random features in combination with digital signatures based on public
key codes in order to recognize counterfeit objects will be discussed. Without applying …

We propose a new technique for security verification of personal documents and other forms
of personal identifications such as ID cards, passports, or credit cards. In this technique a …

Technologies for making high-quality copies of documents are getting more available,
cheaper, and more efficient. As a result, the counterfeiting business engenders huge losses …

Public verification features are part of a matrix of security features on banknotes which allow
the authenticity of legitimate banknotes to be established. They are characterised by being …

Jura has developed different security features based on Information Carrier Digital
Screening. Substance of such features is that a non-visible secondary image is encoded in a …

Holograms traditionally have been used on credit cards, passports, and other IDs to thwart
copying. But technology has advanced to the point where the holographic image can be …

This paper reviews four optical inspection systems, in which development TNO Institute of
Applied Physics was involved:(1) intaglio scanning and recognition,(2) banknote quality …

Access to security spaces and the verification of credit cards require, ideally, a simple and
inexpensive system that combines accuracy with a high resistance to compromise. We have …

To prevent fraud it is critical to distinguish an authentic document from a counterfeit or
altered document. Most current technologies rely on difficult-to-print human detectable …

This paper presents a new approach for the secure integrity verification of driver licenses,
passports or other analogue identification documents. The system embeds (detects) the …