Estimation of Fingerprint Orientation Field by Weighted 2D Fourier Expansion Model

Accurate estimation of fingerprint orientation field is an essential module in fingerprint recognition. This paper proposes a novel technique for improving fingerprint orientation field estimation by fingerprint orientation model based on weighted 2D fourier expansion(W-FOMFE). The motivation for the proposed method can be found by: 1)the original FOMFE is sensitive to abrupt changes in orientation field; 2) blocks of different quality should have different impacts on FOMFE. Thus, we take into account the information of the Harris-corner strength (HCS) for orientation field estimation. In our method, we first calculate the fingerprint' HCS; then use the HCS to remove abrupt changes in orientation field; finally, incorporate the normalized HCS as weighted value into original FOMFE.

• Type: Journal
• Year: 2010
• Where: ICPR
• Authors: Xunqiang Tao, Xin Yang, Kai Cao, Ruifang Wang, Peng Li, Jie Tian
• Keywords: Computer Vision, Fingerprint Orientation, Fingerprint Orientation Field, ICPR 2010, Orientation Field