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Optical Engineering • Open Access

Real-time three-dimensional fingerprint acquisition via a new photometric stereo means
Author(s): Wuyuan Xie; Zhan Song; Ronald C. Chung

Paper Abstract

A real-time means for three-dimensional (3-D) fingerprint acquisition is presented. The system is configured with only one camera and some white light-emitting diode lamps. The reconstruction is performed based on the principle of photometric stereo. In the algorithm, a two-layer Hanrahan–Krueger model is proposed to represent the finger surface reflectance property instead of the traditional Lambert model. By the proposed lighting direction calibration and the nonuniform lighting correction methods, surface normal at each image point can be accurately estimated by solving a nonlinear optimization problem. Finally, a linear normal transformation is implemented for the enhancement of 3-D models. The experiments are implemented with real finger and palm prints, and the results are also compared with traditional means to show its feasibility and improvement in the reconstruction accuracy.

Paper Details

Date Published: 3 October 2013
PDF: 11 pages
Opt. Eng. 52(10) 103103 doi: 10.1117/1.OE.52.10.103103
Published in: Optical Engineering Volume 52, Issue 10
Show Author Affiliations
Wuyuan Xie, The Chinese Univ. of Hong Kong (China)
Zhan Song, Shenzhen Institute of Advanced Technology (China)
Ronald C. Chung, The Chinese Univ. of Hong Kong (Hong Kong, China)

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