Abstract: Systems and methods are provided for calibrating electromagnetic position tracking systems commonly used in virtual reality systems by compensating for steady state magnetic field distortions that can occur within a tracking volume and distort magnetic sensor readings. The calibration system includes a calibration device that holds magnetic sensor(s) in a fixed position relative to a reference position sensor object provided on the calibration device. The calibration data collection process includes positioning the calibration device at multiple locations within a tracking volume and measuring magnetic position readings using a magnetic tracking system and a corresponding reference position using the reference position tracking system.
Type:
Grant
Filed:
February 15, 2018
Date of Patent:
March 30, 2021
Assignee:
The Edge VR, Inc.
Inventors:
Adam Anfiteatro, Steven Leo, Michael Toomas Kivisalu, Shreyas Darshan, Gregory Madias