Event Date
Event Date
Transverse chromatic aberration (TCA) was studied in human retinal visible light Optical Coherence Tomography (OCT). We devised a dispersion model-based iterative algorithm that both estimates and corrects TCA, as well as a model-free direct TCA estimation method. Both approaches yielded a TCA magnitude of ~0.21 arcminutes/degree along the horizontal meridian from 500 nm to 620 nm, consistent with previous research. An expected TCA offset induced by pupil displacement was also observed. Digital TCA correction along the fast axis improved OCT contrast and lateral resolution peripherally. These results show the importance of considering and even compensating TCA in visible light OCT.
Presenter
Moning Pan
NYU Tandon School of Engineering (United States)
Moning Pan is a second year PhD student in the department of biomendical engineering at New York University, working under the supervision of Dr. Srinivasan. Their research focuses on retinal images with visible light OCT. Their current work investigates the transverse chromatic aberration with cross-sectional visible light OCT retinal images, with the goal of compensating the lateral resolution degradation induced by transverse chromatic aberration.