Affiliation:
1. Electrical and Computer Engineering
2. Columbia University
Abstract
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
subsampling, 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.
Funder
National Institutes of
Health
National Institute on Deafness and Other
Communication Disorders
Subject
Atomic and Molecular Physics, and Optics,Biotechnology