Depth perception on fundus images using a single-channel stereomicroscopy

Edalat Radfar, Hyunseon Yu, Tien Son Ho, Seung Ho Choi, Byungjo Jung

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Abstract

Typical fundus photography produces a two-dimensional image. This makes it difficult to observe the microvascular and neural abnormalities, because the depth of the image is missing. To provide depth appreciation, we develop a single-channel stereoscopic fundus video imaging system based on a rotating refractor. With respect to the pupil center, the rotating refractor laterally displaces the optical path and the illumination. This allows standard monocular fundus cameras to generate stereo-parallax and image disparity through sequential image acquisition. We optimize our imaging system, characterize the stereo-base, and image an eyeball model and a rabbit eye. When virtual realities are considered, our imaging system can be a simple yet efficient technique to provide depth perception in a virtual space that allows users to perceive abnormalities in the eye fundus.

Original languageEnglish
Article number2150012
Number of pages9
JournalJournal of Innovative Optical Health Sciences
DOIs
Publication statusPublished - 29 Mar 2021

Keywords

  • Imaging systems
  • ophthalmic optics and devices
  • refraction
  • vision - binocular and stereopsis

ASJC Scopus subject areas

  • Biomedical Engineering
  • Electronic, Optical and Magnetic Materials
  • Medicine (miscellaneous)
  • Atomic and Molecular Physics, and Optics

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