Document Type

Article

Peer Reviewed

1

Publication Date

12-1-2013

Journal/Book/Conference Title

Biomedical Optics Express

DOI of Published Version

10.1364/BOE.4.002712

Abstract

Optical coherence tomography is routinely used clinically for the detection and management of ocular diseases as well as in research where the studies may involve animals. This routine use requires that the developed automated segmentation methods not only be accurate and reliable, but also be adaptable to meet new requirements. We have previously proposed the use of a graph-theoretic approach for the automated 3-D segmentation of multiple retinal surfaces in volumetric human SD-OCT scans. The method ensures the global optimality of the set of surfaces with respect to a cost function. Cost functions have thus far been typically designed by hand by domain experts. This difficult and time-consuming task significantly impacts the adaptability of these methods to new models. Here, we describe a framework for the automated machine-learning based design of the cost function utilized by this graph-theoretic method. The impact of the learned components on the final segmentation accuracy are statistically assessed in order to tailor the method to specific applications. This adaptability is demonstrated by utilizing the method to segment seven, ten and five retinal surfaces from SD-OCT scans obtained from humans, mice and canines, respectively. The overall unsigned border position errors observed when using the recommended configuration of the graph-theoretic method was 6.45 ± 1.87 μm, 3.35 ± 0.62 μm and 9.75 ± 3.18 μm for the human, mouse and canine set of images, respectively.

Keywords

OAfund

Journal Article Version

Version of Record

Published Article/Book Citation

Biomed Opt Express. 2013 Dec 1; 4(12): 2712–2728. doi: 10.1364/BOE.4.002712

Rights

Copyright: © 2013 OSA

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URL

https://ir.uiowa.edu/ece_pubs/1