p.2005
p.2009
p.2014
p.2019
p.2023
p.2027
p.2031
p.2035
p.2039
A Low-Distortion Single Fingerprint Acquisition Optical System
Abstract:
In this paper, a method of correction for the trapezoid distortion of the single fingerprint acquisition system is proposed, which combines nearly telecentric optical path and the inclined plane compensation. According to the method presented, an actual fingerprint acquisition system is designed. There is a prism and two lenses in the system. The resolution of fingerprint acquisition can reach 500dpi. Its optical length is in 45mm, the maximum grid distortion is 0.43%. These meet the standard of the FBI fingerprint scanning system.
Info:
Periodical:
Pages:
2023-2026
Citation:
Online since:
December 2012
Authors:
Price:
Сopyright:
© 2013 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: