Optic Disc and Fovea Localisation in Ultra-widefield Scanning Laser Ophthalmoscope Images Captured in Multiple Modalities

Peter R. Wakeford*, Enrico Pellegrini, Gavin Robertson, Michael Verhoek, Alan D. Fleming, Jano van Hemert, Ik Siong Heng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

We propose a convolutional neural network for localising the centres of the optic disc (OD) and fovea in ultra-wide field of view scanning laser ophthalmoscope (UWFoV-SLO) images of the retina. Images captured in both reflectance and autofluorescence (AF) modes, and central pole and eyesteered gazes, were used. The method achieved an OD localisation accuracy of 99.4% within one OD radius, and fovea localisation accuracy of 99.1% within one OD radius on a test set comprising of 1790 images. The performance of fovea localisation in AF images was comparable to the variation between human annotators at this task. The laterality of the image (whether the image is of the left or right eye) was inferred from the OD and fovea coordinates with an accuracy of 99.9%.

Original languageEnglish
Title of host publicationMedical Image Understanding and Analysis - 23rd Conference, MIUA 2019, Proceedings
EditorsYalin Zheng, Bryan M. Williams, Ke Chen
PublisherSpringer
Pages399-410
Number of pages12
ISBN (Print)9783030393427
DOIs
Publication statusPublished - 24 Jan 2020
Event23rd Conference on Medical Image Understanding and Analysis, MIUA 2019 - Liverpool, United Kingdom
Duration: 24 Jul 201926 Jul 2019

Publication series

NameCommunications in Computer and Information Science
Volume1065 CCIS
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937

Conference

Conference23rd Conference on Medical Image Understanding and Analysis, MIUA 2019
Country/TerritoryUnited Kingdom
CityLiverpool
Period24/07/1926/07/19

Keywords / Materials (for Non-textual outputs)

  • Convolutional neural networks
  • Fovea detection
  • Laterality determination
  • Optic disc detection
  • Retinal images

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