Calibration of position and angular data from a magnetic tracking device

Kinematics and Kinetics of Youth Baseball Catchers and Pitchers

“…The Flock of Birds Ascension system has been validated for tracking humeral movements, producing trial-by-trial interclass correlation coefficients for axial humerus rotation in both loaded and non-loaded conditions in excess of 0.96 [9]. The field distortion has been shown to be the cause of error in excess of 5° at a distance of 2 m from an extended range transmitter [10], but increases in instrumental sensitivity have reduced this error to near 10° prior to system calibration and 2° following system calibration [11,12]. Previously-established techniques were used to calibrate the system prior to data collection [10][11][12].…”

An analysis of tracking error in image-guided neurosurgery

“…There are other sources of error associated with magnetic tracking systems (Day, Murdoch and Dumas 2000), as well as ultrasonic tracking systems (O'Donnell., et al 1994) which are related to parameters associated with their respective hardware.…”

Neck Motion Analysis Using a Virtual Environment

“…2001;Youdas, J.W. et al 1991) potentiometer-based tools, (Feipel, V. et al 1999) as well as more advanced technologies such as ultrasonic (Dvir, Z. et al 2006;Dvir, Z. and Prushansky, T. 2000), optic (Marcotte, J. et al 2002), and electromagnetic (Day, J.S. et al 2000;Koerhuis, C.L.…”