TY - GEN
T1 - Optical head-tracking for fMRI using structured light
AU - Zaremba, Andrei A.
AU - MacFarlane, Duncan L.
AU - Tseng, Wei Che
AU - Briggs, Richard W.
AU - Gopinath, Kaundinya S.
AU - Cheshkov, Sergey
AU - White, Keith D.
PY - 2007
Y1 - 2007
N2 - An accurate motion tracking technique is needed to compensate for subject motion during fMRI procedures. In this paper, a novel approach to motion metrology is discussed. A structured light pattern specifically coded for digital signal processing is positioned onto a fiduciary of the patient. As the patient undergoes spatial transformations in 6 DoF (degrees of freedom), a high-resolution CCD camera captures successive images for analysis on a DSP board. A high-speed image processing algorithm is used to calculate spatial transformations in a time frame commensurate with patient movements (10-100ms) and with precisions of at least 0.5 um for translations and 0.1 degrees for rotations.
AB - An accurate motion tracking technique is needed to compensate for subject motion during fMRI procedures. In this paper, a novel approach to motion metrology is discussed. A structured light pattern specifically coded for digital signal processing is positioned onto a fiduciary of the patient. As the patient undergoes spatial transformations in 6 DoF (degrees of freedom), a high-resolution CCD camera captures successive images for analysis on a DSP board. A high-speed image processing algorithm is used to calculate spatial transformations in a time frame commensurate with patient movements (10-100ms) and with precisions of at least 0.5 um for translations and 0.1 degrees for rotations.
UR - http://www.scopus.com/inward/record.url?scp=48949118153&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48949118153&partnerID=8YFLogxK
U2 - 10.1109/EMBSW.2007.4454164
DO - 10.1109/EMBSW.2007.4454164
M3 - Conference contribution
AN - SCOPUS:48949118153
SN - 9781424416264
T3 - 2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS
SP - 23
EP - 26
BT - 2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS
T2 - 2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS
Y2 - 11 November 2007 through 12 November 2007
ER -