Pose-Specific 3D Fingerprint Unfolding

TL;DR

This paper introduces a pose-specific 3D fingerprint unfolding method that aligns 3D fingerprints with flat fingerprints in the same pose, improving recognition accuracy by reducing elastic deformation effects.

Contribution

The novel pose-specific unfolding algorithm enhances compatibility between 3D and 2D fingerprints, leading to better matching performance compared to traditional unfolding methods.

Findings

Improved genuine matching scores with the proposed method

Enhanced compatibility between 3D and flat fingerprints

Reduction of elastic deformation effects

Abstract

In order to make 3D fingerprints compatible with traditional 2D flat fingerprints, a common practice is to unfold the 3D fingerprint into a 2D rolled fingerprint, which is then matched with the flat fingerprints by traditional 2D fingerprint recognition algorithms. The problem with this method is that there may be large elastic deformation between the unfolded rolled fingerprint and flat fingerprint, which affects the recognition rate. In this paper, we propose a pose-specific 3D fingerprint unfolding algorithm to unfold the 3D fingerprint using the same pose as the flat fingerprint. Our experiments show that the proposed unfolding algorithm improves the compatibility between 3D fingerprint and flat fingerprint and thus leads to higher genuine matching scores.