Signature Verification System using Pen Pressure for Internet and E-Commerce Application

1. Introduction The need to ensure that only the right people have authorisation to high-security accesses has led to the development of systems for automatic personal verification. Fingerprints, palmprints, voice and handwriting have all been used to verify the declared identity of an individual. Among all, signature has a fundamental advantage in that it is the customary way of identifying an individual in daily operations such as automated banking transaction, electronic fund transfers, document analysis and access control [1, 3, 4]. A signature verification system must be able to detect forgeries and at the same time reduce rejection of genuine signatures. In this paper, an automated signature verification system based on the pressure exerted on the pen tip is presented. No digital pad or specific paper is needed in this proposed system as the instrumented pen was designed to function independently without any pad. As long as there is a surface to sign on, the pressure exerted on the pen tip can be measured. Our results show that it is possible to verify signatures and yield performance satisfactory especially in the case of point-of-sales (POS) applications such as credit card transaction. The technique used, which includes the instrumental pen, is very practical and reliable in Internet and E-commerce applications. Although work has been done to verify signatures using the pressure exerted on the pen tip, results obtained and the practicality of those methods are not convincing enough to be implemented.