A Spatiotemporal Illumination Model for 3d Image Fusion in Optical Coherence Tomography

Ploner S, Won J, Schottenhamml J, Girgis J, Lam K, Waheed N, Fujimoto J, Maier A (2023)

Publication Type: Conference contribution

Publication year: 2023

Publisher: IEEE

Conference Proceedings Title: 2023 IEEE 20th International Symposium on Biomedical Imaging

Event location: Cartagena CO

DOI: 10.1109/ISBI53787.2023.10230526

Abstract

Optical coherence tomography (OCT) is a non-invasive, micrometer-scale imaging modality that has become a clinical standard in ophthalmology. By raster-scanning the retina, sequential cross-sectional image slices are acquired to generate volumetric data. In-vivo imaging suffers from discontinuities between slices that show up as motion and illumination artifacts. We present a new illumination model that exploits continuity in orthogonally raster-scanned volume data. Our novel spatiotemporal parametrization adheres to illumination continuity both temporally, along the imaged slices, as well as spatially, in the transverse directions. Yet, our formulation does not make inter-slice assumptions, which could have discontinuities. This is the first optimization of a 3D inverse model in an image reconstruction context in OCT. Evaluation in 68 volumes from eyes with pathology showed reduction of illumination artifacts in 88% of the data, and only 6% showed moderate residual illumination artifacts. The method enables the use of forward-warped motion corrected data, which is more accurate, and enables supersampling and advanced 3D image reconstruction in OCT.

Authors with CRIS profile

Stefan Ploner Lehrstuhl für Informatik 5 (Mustererkennung) Julia Schottenhamml Department of Ophthalmology Andreas Maier Lehrstuhl für Informatik 5 (Mustererkennung)

Involved external institutions

Massachusetts Institute of Technology (MIT) US United States (USA) (US) New England Eye Center US United States (USA) (US)

How to cite

APA:

Ploner, S., Won, J., Schottenhamml, J., Girgis, J., Lam, K., Waheed, N.,... Maier, A. (2023). A Spatiotemporal Illumination Model for 3d Image Fusion in Optical Coherence Tomography. In 2023 IEEE 20th International Symposium on Biomedical Imaging. Cartagena, CO: IEEE.

MLA:

Ploner, Stefan, et al. "A Spatiotemporal Illumination Model for 3d Image Fusion in Optical Coherence Tomography." Proceedings of the IEEE International Symposium on Biomedical Imaging, Cartagena IEEE, 2023.

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