Optical recognition of fingerprints

Authors

Alvin C. Baclig ⋅ PH National Institute of Physics, University of the Philippines Diliman
Percival F. Almoro ⋅ PH National Institute of Physics, University of the Philippines Diliman
Marlon Rosendo H. Daza ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Fingerprint recognition is employed using an optical pattern recognition setup involving correlation filters. A Vander Lugt correlation system is constructed for filter recording and pattern recognition processes. Correlation peaks observed at the output plane gives an indication on the presence of the input fingerprint pattern that matches the pattern stored in the filter. The intensity of the correlation peak describing the degree of correlation is quantified by the integrated optical density (IOD) value. Correlation is performed for the identification and discrimination of fingerprints with different types and patterns. The effect on the correlation intensity is also studied for the recognized fingerprint pattern with partial fingerprint information. The experimental results were found to agree with the theoretical predictions. The correlation system also exhibited invariance to translation but demonstrates a high sensitivity for rotational variation.

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Issue

2001: Proceedings of the 19th Samahang Pisika ng Pilipinas Philippine Physics Congress

Article ID

SPP-2001-PP-02

Section

Lasers and Applications

Published

2001-10-24

How to Cite

[1]

AC Baclig, PF Almoro, and MRH Daza, Optical recognition of fingerprints, Proceedings of the Samahang Pisika ng Pilipinas 19, SPP-2001-PP-02 (2001). URL: https://proceedings.spp-online.org/article/view/SPP-2001-PP-02.