Optical head-tracking for fMRI using structured light

Andrei A. Zaremba, Duncan L. MacFarlane, Wei Che Tseng, Richard W. Briggs, Kaundinya S. Gopinath, Sergey Cheshkov, Keith D. White

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publication2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS
Pages23-26
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS - Richardson, TX, United States
Duration: Nov 11 2007Nov 12 2007

Other

Other2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS
CountryUnited States
CityRichardson, TX
Period11/11/0711/12/07

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ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Zaremba, A. A., MacFarlane, D. L., Tseng, W. C., Briggs, R. W., Gopinath, K. S., Cheshkov, S., & White, K. D. (2007). Optical head-tracking for fMRI using structured light. In 2007 IEEE Dallas Engineering in Medicine and Biology Workshop, DEMBS (pp. 23-26). [4454164] https://doi.org/10.1109/EMBSW.2007.4454164