Alignment-free cancelable fingerprint template design: A densely infinite-to-one mapping (DITOM) approach

作者：Wang Song; Hu Jiankun^*

来源：Pattern Recognition, 2012, 45(12): 4129-4137.

DOI：10.1016/j.patcog.2012.05.004

• Cancelable templates
• Alignment-free
• Non-invertible
• Infinite-to-one mapping
• Security

Registration-based cancelable template schemes rely on accurate fingerprint image alignment, which is very difficult to achieve. In this paper, by exploiting pair-minutiae vectors, we develop a lightweight, alignment-free scheme for generating cancelable fingerprint templates. The proposed mathematical model is based on a densely infinite-to-one mapping (DITOM) aiming to achieve the non-invertible property. The transformation designed describes the intersection of a collection of hyperplanes and effectively realizes infinite-to-one mapping. The proposed scheme has the properties of non-invertibility, revocability and multiple template independence. Evaluation of the proposed scheme over FVC2002 DB1, DB2 and DB3 shows that the new method exhibits satisfactory performance compared to existing methods.

• 出版日期2012-12