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. 2022 Sep 22;9:580. doi: 10.1038/s41597-022-01618-6

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Schematic of an OCT volume with examples of consecutive slices (b-scans) from the three open-access OCT datasets used in this study. In (a) consecutive 2D b-scans rendering a 3D OCT volume are pictured. Here an example from the AIIMS dataset¹⁴ is used for illustrative purposes. In (b) the consecutive b-scans separated by ~18 micrometers are examples of healthy breast tissue (Patient 15, volume 0046, slices 0075 and 0076) from the AIIMS dataset¹⁴. In (c) images of healthy retina from Srinivasan’s dataset¹⁶ (folder NORMAL5 slices 032 and 033) can be seen. In (d) consecutive images of retina affected by choroidal neovascularization (CNV 81630-33 and 81630-34) from the Kermany’s OCT2017 version 2 dataset¹⁵ are shown. Note that the b-scans from both Kermany’s and Srinivasan’s datasets are given with data augmentation originally applied.