Fingerprint Scaling

Authors:
Chun-Xiao Ren;Yi-Long Yin;Jun Ma;Hao Li
Affiliations:
School of Computer Science and Technology, Shandong University, Jinan, China 250100;School of Computer Science and Technology, Shandong University, Jinan, China 250100;School of Computer Science and Technology, Shandong University, Jinan, China 250100;School of Computer Science and Technology, Shandong University, Jinan, China 250100
Venue:
ICIC '08 Proceedings of the 4th international conference on Intelligent Computing: Advanced Intelligent Computing Theories and Applications - with Aspects of Theoretical and Methodological Issues
Year:
2008

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Abstract

The problem of fingerprint scaling has received limited attention in the literature. Fingerprint scaling is an important issue for fingerprint sensor interoperability. However, no systematic study has been conducted to ascertain its effect on fingerprint systems. In this paper, a fingerprint scaling scheme using the average inter-ridge distance is presented. At first, the average inter-ridge distances of two fingerprint images acquired with two different fingerprint sensors are estimated respectively. Then the images are zoomed according to scale of the two average inter-ridge distances. Experiments have shown that the proposed fingerprint scaling method has good performance.