Singular Point Detection from High-resolution Orientation Field

초록

A singular point detection method based on high-resolution orientation field is proposed in this paper. Firstly, complex angle differential is computed from the high-resolution Orientation Field (OF), then, the singular point in OF is extracted and taken as candidate singular point. Finally, the Poincare Index (PI) is utilized to verify the candidate point. The proposed algorithm is tested on FVC2000 DB 2b, and shows robust experimental results.