Iris feature based watermarking algorithm for personal identification

摘要

Rapidly development of technique causes big problem on the security of digital product. The digital signature technique and watermarking technique are common used solution, but hidden security trouble is still existed. A new biometric watermarking scheme is proposed for property protecting and digital product owner identification. The scheme adopts the iris of digital product holder as watermark, which has the advantage of uniqueness, stability and impossible been counterfeited, so the security level is improved. In this scheme, we utilize person's iris to generate the watermark, and embed this watermark signal into the host image like certification of consumer or other document. While identifying or verifying the owner of the product, we first extract and reconstruct the watermark, then compare the watermark (i.e. the iris image) with the field collected iris image to verify authority. Because there is a direct relationship between the certification holder and the credentials; the reliability is improved greatly.