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Superpixel guided active contour segmentation of retinal layers in OCT volumes
Author(s): Fangliang Bai; Stuart J. Gibson; Manuel J. Marques; Adrian Podoleanu
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Paper Abstract

Retinal OCT image segmentation is a precursor to subsequent medical diagnosis by a clinician or machine learning algorithm. In the last decade, many algorithms have been proposed to detect retinal layer boundaries and simplify the image representation. Inspired by the recent success of superpixel methods for pre-processing natural images, we present a novel framework for segmentation of retinal layers in OCT volume data. In our framework, the region of interest (e.g. the fovea) is located using an adaptive-curve method. The cell layer boundaries are then robustly detected firstly using 1D superpixels, applied to A-scans, and then fitting active contours in B-scan images. Thereafter the 3D cell layer surfaces are efficiently segmented from the volume data. The framework was tested on healthy eye data and we show that it is capable of segmenting up to 12 layers. The experimental results imply the effectiveness of proposed method and indicate its robustness to low image resolution and intrinsic speckle noise.

Paper Details

Date Published: 5 March 2018
PDF: 10 pages
Proc. SPIE 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources, 1059106 (5 March 2018); doi: 10.1117/12.2282326
Show Author Affiliations
Fangliang Bai, Univ. of Kent (United Kingdom)
Stuart J. Gibson, Univ. of Kent (United Kingdom)
Manuel J. Marques, Univ. of Kent (United Kingdom)
Adrian Podoleanu , Univ. of Kent (United Kingdom)

Published in SPIE Proceedings Vol. 10591:
2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources
Adrian Podoleanu; Ole Bang, Editor(s)

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