Abstract #4340
Calibration and quality assurance for optical prospective motion correction using active markers
Julian Maclaren 1 , Melvyn B. Ooi 1 , Murat Aksoy 1 , Jakob Ehrl 1 , and Roland Bammer 1
1
Dept. of Radiology, Stanford University,
Stanford, CA, United States
In this work, we present a fast means to calibrate an
optical tracking system used for prospective motion
correction. A calibration tool comprising wireless
active markers and an optical marker is used to
simultaneously measure motion in both coordinate
systems. A hand-eye calibration, often used in
robotics, is then applied to compute the required
coordinate transformation. Other quality assurance
information, such as optical system latency, accuracy
and precision can be derived from the same data.
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