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dc.contributor.authorGarcia Marin, Y
dc.contributor.authorSkrok, M
dc.contributor.authorSiedlecki, D
dc.contributor.authorVincent, SJ
dc.contributor.authorCollins, MJ
dc.contributor.authorAlonso-Caneiro, D
dc.description.abstractQuantification of the eye's anterior segment morphology from optical coherence tomography (OCT) images is crucial for research and clinical decision-making, including the diagnosis and monitoring of many ocular diseases. Structural parameters, such as tissue thickness and area are the most common metrics used to quantify these medical images, and tissue segmentation is required before these metrics can be extracted. Currently, swept source OCT allows the capture of cross-sectional images that encompass the entire anterior segment with a high level of detail. However, the manual annotation of tissue boundaries is time-consuming. In this work, an algorithm based on graph-search theory combined with boundary-specific image transformation is applied for the segmentation of anterior segment OCT images. We demonstrate that the method can reliably segment 5 different tissue boundaries in healthy eyes with low boundary error (mean error below 1 pixel across all boundaries). The technique can be used to extract clinically relevant parameters such as central corneal and crystalline lens thickness as well as anterior chamber depth and area, with a high level of agreement with manual segmentation (normalized errors below 1.6%). The proposed method provides a tool that can support clinical and research OCT data analysis.en_US
dc.publisherElsevier BVen_US
dc.relation.ispartofjournalBiocybernetics and Biomedical Engineeringen_US
dc.subject.fieldofresearchBiomedical engineeringen_US
dc.titleSegmentation of anterior segment boundaries in swept source OCT imagesen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationGarcia Marin, Y; Skrok, M; Siedlecki, D; Vincent, SJ; Collins, MJ; Alonso-Caneiro, D, Segmentation of anterior segment boundaries in swept source OCT images, Biocybernetics and Biomedical Engineering, 2021, 41 (3), pp. 903-915en_US
gro.hasfulltextNo Full Text
gro.griffith.authorAlonso-Caneiro, David

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