Bilinear Coons Patch and its Application in Security Pattern Design

Nowadays, with the rapid development of printing and publishing industry, security printing technology becomes more and more important. Meanwhile, security pattern design is one of the most important techniques of security printing. A well designed security pattern should be difficult to counterfeit in any way. Therefore it can be used in printed security documents, such as banknotes, passports and certificates, etc. In this paper, based on the generalization of Coons patch construction, we propose a novel scheme of security pattern design. The practical pattern examples are presented, and some other applications of the novel method are also discussed.