Structured Light-Based Motion Tracking in the Limited View of an MR Head Coil

M. Erikshøj, Oline Vinter Olesen, Knut Conradsen, L. Højgaard, Rasmus Larsen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A markerless motion tracking (MT) system developed for use in PET brain imaging has been tested in the limited field of view (FOV) of the MR head coil from the Siemens Biograph mMR. The system is a 3D surface scanner that uses structured light (SL) to create point cloud reconstructions of the facial surface. The point clouds are continuously realigned to a reference scan to obtain pose estimates. The system has been tested on a mannequin head performing controlled rotational and translational axial movements within the head coil outside the range of the magnetic field. The RMS of the residual error of the rotation was 0.11° and the RMS difference in the translation with the control system was 0.17 mm, within the trackable range of movement.
Original languageEnglish
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume702
Pages (from-to)117–120
ISSN0168-9002
DOIs
Publication statusPublished - 2013

Keywords

  • Motion tracking
  • Structured light
  • PET/MRI
  • Markerless
  • Tracoline

Fingerprint Dive into the research topics of 'Structured Light-Based Motion Tracking in the Limited View of an MR Head Coil'. Together they form a unique fingerprint.

Cite this