| [140974] |
| Title: High-Speed Markerless Tissue Motion Tracking Using Volumetric Optical Coherence Tomography Images. <em>IEEE International Symposium on Biomedical Imaging</em> |
| Written by: M. Schlüter and L. Glandorf and J. Sprenger and M. Gromniak and M. Neidhardt and T. Saathoff and A. Schlaefer |
| in: (2020). |
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| on pages: 1979-1982 |
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| DOI: 10.1109/ISBI45749.2020.9098448 |
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Abstract: Modern optical coherence tomography (OCT) devices provide volumetric images with micrometer-scale spatial resolution and a temporal resolution beyond video rate. In this work, we analyze an OCT-based prototypical tracking system which processes 831 volumes per second, estimates translational motion, and automatically adjusts the field-of-view, which has a size of few millimeters, to follow a sample even along larger distances. The adjustment is realized by two galvo mirrors and a motorized reference arm, such that no mechanical movement of the scanning setup is necessary. Without requiring a marker or any other knowledge about the sample, we demonstrate that reliable tracking of velocities up to 25 mm s -1 is possible with mean tracking errors in the order of 0.25 mm. Further, we report successful tracking of lateral velocities up to 70 mm s -1 with errors below 0.3 mm