Netinfo Security ›› 2025, Vol. 25 ›› Issue (7): 1153-1162.doi: 10.3969/j.issn.1671-1122.2025.07.013

Previous Articles     Next Articles

A Progressive Focusing-Based Scheme for Low-Quality Fingerprint Pose Estimation

ZHANG Xuefeng, MIAO Kai()   

  1. School of Cyberspace Security, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
  • Received:2024-12-09 Online:2025-07-10 Published:2025-08-07
  • Contact: MIAO Kai E-mail:mk1425875741@qq.com

Abstract:

To address the low accuracy issue of fingerprint pose estimation algorithms in processing low-quality and distorted fingerprints, this paper proposed an ABSF-based progressive focusing scheme. The workflow included: preprocessing raw fingerprint images to obtain texture images; generating enhanced fingerprint images through image enhancement; estimating reference point regions from enhanced images; evaluating positioning accuracy using quality criteria-performing ridge quality enhancement for unqualified cases, or executing final pose estimation for qualified cases. Experimental validation on FVC, NIST SD27 and DF benchmark databases demonstrates superior estimation precision and recognition accuracy compared to existing methods.

Key words: fingerprint recognition, attitude estimation, reference point detection

CLC Number: