Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Improved scanning laser fundus imaging using polarimetry

Not Accessible

Your library or personal account may give you access

Abstract

We present a polarimetric technique to improve fundus images that notably simplifies and extends a previous procedure [Opt. Lett. 27, 830 (2002)] . A generator of varying polarization states was incorporated into the illumination path of a confocal scanning laser ophthalmoscope. A series of four images, corresponding to independent incoming polarization states, were recorded. From these images, the spatially resolved elements of the top row of the Mueller matrix were computed. From these elements, images with the highest and lowest quality (according to different image quality metrics) were constructed, some of which provided improved visualization of fundus structures of clinical importance (vessels and optic nerve head). The metric values were better for these constructed images than for the initially recorded images and better than averaged images. Entropy is the metric that is most sensitive to differences in the image quality. Improved visualization of features could aid in the detection, localization, and tracking of ocular disease and may be applicable in other biomedical imaging.

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Characterizing image quality in a scanning laser ophthalmoscope with differing pinholes and induced scattered light

Jennifer J. Hunter, Christopher J. Cookson, Marsha L. Kisilak, Juan M. Bueno, and Melanie C. W. Campbell
J. Opt. Soc. Am. A 24(5) 1284-1295 (2007)

Confocal scanning laser ophthalmoscopy improvement by use of Mueller-matrix polarimetry

Juan M. Bueno and Melanie C. W. Campbell
Opt. Lett. 27(10) 830-832 (2002)

Imaging polarimetry and retinal blood vessel quantification at the epiretinal membrane

Masahiro Miura, Ann E. Elsner, Michael C. Cheney, Masahiko Usui, and Takuya Iwasaki
J. Opt. Soc. Am. A 24(5) 1431-1437 (2007)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (14)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved