Depth perception on fundus images using a single-channel stereomicroscopy

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Tehran University of Medical Sciences
  • Yonsei University

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.

Details

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

Keywords

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