Intensity-based Choroidal Registration Using Regularized Block Matching

Ronchetti, Tiziano and Maloca, Peter and Meier, Christoph and Orguel, Selim and Jud, Christoph and Hasler, Pascal and Povazay, Boris and Cattin, Philippe C.. (2016) Intensity-based Choroidal Registration Using Regularized Block Matching. In: International Workshop Ophthalmic Medical Image Analysis (MICCAI OMIA). Cham, pp. 33-40.

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Official URL: http://edoc.unibas.ch/54841/

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Detecting and monitoring changes in the human choroid play a crucial role in treating ocular diseases such as myopia. However, reliable segmentation of optical coherence tomography (OCT) images at the choroid-sclera interface (CSI) is notoriously difficult due to poor contrast, signal loss and OCT artefacts. In this paper we present blockwise registration of successive scans to improve stability also during complete loss of the CSI-signal. First, we formulated the problem as minimization of a regularized energy functional. Then, we tested our automated method for piecewise Intensity-based Choroidal rigid Registration using regularized block matching (ICR) on 20 OCT 3D-volume scan-rescan data set pairs. Finally, we used these data set pairs to determine the precision of our method, while the accuracy was determined by comparing our results with those using manually annotated scans.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedical Engineering > Imaging and Computational Modelling > Center for medical Image Analysis & Navigation (Cattin)
UniBasel Contributors:Cattin, Philippe Claude
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Paper
Note:Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:06 Dec 2017 12:22
Deposited On:06 Dec 2017 12:22

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