title: Alignment of angular velocity sensors for a vestibular prosthesis.
abstract: Vestibular prosthetics transmit angular velocities to the nervous system via electrical stimulation. Head-fixed gyroscopes measure angular motion, but the gyroscope coordinate system will not be coincident with the sensory organs the prosthetic replaces. Here we show a simple calibration method to align gyroscope measurements with the anatomical coordinate system. We benchmarked the method with simulated movements and obtain proof-of-concept with one healthy subject. The method was robust to misalignment, required little data, and minimal processing.
authors.affiliation: Neuroprosthetics Control Group - Automatic Control Lab, ETH Zurich, Physikstrasse 3, ETL k24, 8092 Zürich, Switzerland. digiovanna@control.ee.ethz.ch
authors.forename: Jack
authors.initials: J
authors.lastname: Digiovanna
authors.forename: Jacopo
authors.initials: J
authors.lastname: Carpaneto
authors.forename: Silvestro
authors.initials: S
authors.lastname: Micera
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Merfeld
mesh_terms: D000054:Acceleration; D000465:Algorithms; D002138:Calibration; D019544:Equipment Failure Analysis / Q000379:methods; D006801:Humans; D019736:Prostheses and Implants; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers; D014722:Vestibule, Labyrinth / Q000503:physiopathology*