Details
| Original language | English |
|---|---|
| Title of host publication | Ophthalmic Technologies XXXV |
| Editors | Daniel X. Hammer, Derek Nankivil, Yuankai K. Tao |
| Publisher | SPIE |
| ISBN (electronic) | 9781510683488 |
| Publication status | Published - 19 Mar 2025 |
| Event | SPIE Photonics West BiOS 2025 - San Francisco, United States Duration: 25 Jan 2025 → 31 Jan 2025 |
Publication series
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Volume | 13300 |
| ISSN (Print) | 1605-7422 |
Abstract
A fiber-based linear optical coherence tomography (LOCT) system employing a cost-effective CMOS camera has previously demonstrated high-resolution imaging suitable for retinal screening, including glaucoma monitoring. However, the system’s imaging depth was constrained to approximately 400 µm, insufficient for depth imaging of the optic nerve head (ONH), due to limitations imposed by the camera’s sensor size and pixel pitch. To overcome this limitation without replacing the economical and available sensor, we present a modification to the reference arm. By optimizing the utilization of the camera sensor’s vertical dimension, the system achieves an extended imaging depth, enabling the visualization of deeper tissue structures. Validation using an artificial eye model confirms that the modified LOCT system significantly enhances imaging depth while maintaining B-Scan quality. This advancement offers a cost-effective approach to extend the measurement range of LOCT systems, broadening their applicability in retinal imaging without altering the actual imaging sensor.
Keywords
- LOCT, Low-cost OCT, OCT, Retinal Imaging
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Biomaterials
- Medicine(all)
- Radiology Nuclear Medicine and imaging
Cite this
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- BibTeX
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Ophthalmic Technologies XXXV. ed. / Daniel X. Hammer; Derek Nankivil; Yuankai K. Tao. SPIE, 2025. 133000I (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 13300).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Extending the Measurement Range in Ophthalmic Linear Optical Coherence Tomography using Dual Reference Path Interferometry
AU - Bauer, Niklas
AU - Harings, David
AU - Mendroch, Damian
AU - Matrisch, Jan
AU - Oberheide, Uwe
AU - Heisterkamp, Alexander
N1 - Publisher Copyright: © 2025 SPIE.
PY - 2025/3/19
Y1 - 2025/3/19
N2 - A fiber-based linear optical coherence tomography (LOCT) system employing a cost-effective CMOS camera has previously demonstrated high-resolution imaging suitable for retinal screening, including glaucoma monitoring. However, the system’s imaging depth was constrained to approximately 400 µm, insufficient for depth imaging of the optic nerve head (ONH), due to limitations imposed by the camera’s sensor size and pixel pitch. To overcome this limitation without replacing the economical and available sensor, we present a modification to the reference arm. By optimizing the utilization of the camera sensor’s vertical dimension, the system achieves an extended imaging depth, enabling the visualization of deeper tissue structures. Validation using an artificial eye model confirms that the modified LOCT system significantly enhances imaging depth while maintaining B-Scan quality. This advancement offers a cost-effective approach to extend the measurement range of LOCT systems, broadening their applicability in retinal imaging without altering the actual imaging sensor.
AB - A fiber-based linear optical coherence tomography (LOCT) system employing a cost-effective CMOS camera has previously demonstrated high-resolution imaging suitable for retinal screening, including glaucoma monitoring. However, the system’s imaging depth was constrained to approximately 400 µm, insufficient for depth imaging of the optic nerve head (ONH), due to limitations imposed by the camera’s sensor size and pixel pitch. To overcome this limitation without replacing the economical and available sensor, we present a modification to the reference arm. By optimizing the utilization of the camera sensor’s vertical dimension, the system achieves an extended imaging depth, enabling the visualization of deeper tissue structures. Validation using an artificial eye model confirms that the modified LOCT system significantly enhances imaging depth while maintaining B-Scan quality. This advancement offers a cost-effective approach to extend the measurement range of LOCT systems, broadening their applicability in retinal imaging without altering the actual imaging sensor.
KW - LOCT
KW - Low-cost OCT
KW - OCT
KW - Retinal Imaging
UR - http://www.scopus.com/inward/record.url?scp=105004189156&partnerID=8YFLogxK
U2 - 10.1117/12.3046633
DO - 10.1117/12.3046633
M3 - Conference contribution
AN - SCOPUS:105004189156
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Ophthalmic Technologies XXXV
A2 - Hammer, Daniel X.
A2 - Nankivil, Derek
A2 - Tao, Yuankai K.
PB - SPIE
T2 - SPIE Photonics West BiOS 2025
Y2 - 25 January 2025 through 31 January 2025
ER -