Use of retinal nerve fiber layer birefringence as an addition to absorption in retinal scanning for biometric purposes

被引：4

作者：

Agopov, Mikael ^{[1
]}

Gramatikov, Boris I. ^{[2
]}

Wu, Yi-Kai ^{[2
]}

Irsch, Kristina ^{[1
]}

Guyton, David L. ^{[2
]}

机构：

[1] Heidelberg Univ, Kirchoff Inst Phys, D-69120 Heidelberg, Germany

[2] Johns Hopkins Univ, Sch Med, Wilmer Inst, Krieger Childrens Eye Ctr, Baltimore, MD 21287 USA

来源：

APPLIED OPTICS | 2008年 / 47卷 / 08期

关键词：

D O I：

10.1364/AO.47.001048

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We built a device sensitive to the bireffingence of the retinal nerve fiber layer for biometric purposes. A circle of 20 degrees diameter on the retina was scanned around the optic disk with a spot of light from a 785 nm laser diode. The nonbirefringent blood vessels indenting or displacing the retinal nerve fiber layer were seen as "blips" in the measured bireftingence-derived signal. For comparison, the reflection-absorption signature of the blood vessel pattern in the scanned circle was also measured. The bireftingence-derived signal proved to add useful information to the reflectance-absorption signature for retinal biometric scanning. (c) 2008 Optical Society of America.

引用

页码：1048 / 1053

页数：6

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