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Optical coherence tomography (OCT) is capable of angstrom-scale vibrometry of particular interest to researchers of auditory mechanics. We develop a method for compressed sensing vibrometry using OCT that significantly reduces acquisition time for dense motion maps. Our method, based on total generalized variation with uniform sub-sampling, can reduce the number of samples needed to measure motion maps by a factor of ten with less than 5% normalized mean square error when tested on a diverse set of in vivo measurements from the gerbil cochlea. This opens up the possibility for more complex in vivo experiments for cochlear mechanics.
Brian L. Frost,Nikola P. Janjušević,C. Elliott Strimbu, andChristine P. Hendon
"Compressed sensing on displacement signals measured with optical coherence tomography", Proc. SPIE PC12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII, PC128302Q (13 March 2024); https://doi.org/10.1117/12.3005009
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Brian L. Frost, Nikola P. Janjušević, C. Elliott Strimbu, Christine P. Hendon, "Compressed sensing on displacement signals measured with optical coherence tomography," Proc. SPIE PC12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII, PC128302Q (13 March 2024); https://doi.org/10.1117/12.3005009