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Point-scan swept-source optical coherence tomography systems (SS-OCTs) are subject to volumetric framerate limits governed by source sweep rate and scanner dynamics. For scenes with dynamic features on static backgrounds, adaptive scanning escapes these limits by visiting scan positions only as needed. We implemented adaptive scanning using a probabilistic approach that balanced re-imaging of known dynamic positions with exploration for undiscovered ones. We evaluated our approach in model systems that simulated ophthalmic surgery and multi-target tracking using a 200 kHz SS-OCT system. We demonstrated framerate speedups of 6.7x and 8.0x, respectively, performance that would have otherwise required a significantly faster source.
Mark Draelos,Christian Viehland,Ryan P. McNabb,Anthony N. Kuo, andJoseph Izatt
"Adaptive scanning for > 5x speedup in volumetric frame rate with point-scan optical coherence tomography", Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC119480L (7 March 2022); https://doi.org/10.1117/12.2612428
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Mark Draelos, Christian Viehland, Ryan P. McNabb, Anthony N. Kuo, Joseph Izatt, "Adaptive scanning for > 5x speedup in volumetric frame rate with point-scan optical coherence tomography," Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC119480L (7 March 2022); https://doi.org/10.1117/12.2612428