Abstract #0891
Optical Motion Tracking With Two Markers for Robust Prospective Motion Correction
Aditya Singh 1 , Benjamin Zahneisen 1 , Brian Keating 1 , Michael Herbst 2 , Maxim Zaitsev 2 , and Thomas Ernst 1
1
JABSOM, University of Hawaii, Honolulu,
Hawaii, United States,
2
University
Medical Center Freiburg, Freiburg, Germany
Prospective motion correction (PMC) using camera-based
tracking of a skin-attached marker may suffer from
problems such as loss of marker visibility and false
tracking signals due to squinting or twitching. We
introduce a PMC system that is capable of mitigating
these problems by simultaneously tracking two markers
placed on the object to be imaged. Experiments
demonstrate improved image quality during obstruction of
the line-of-sight and when a subject squints. The
techniques developed can be applied to any optical
tracking system and can be adapted to the use of more
than two markers.
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