Head Orientation Tracking in an Aircraft Cockpit Environment, Ákos Maróy
Sprache des Titels:
A Head-Mounted Display-based Augmented Reality solution such as Aero Glass needs to track the orientation of the users head to be able to display AR in a usable fashion. While off-the-shelf Head-Mounted Displays such as the Epson Moverio BT-200 or Osterhout ODG R6 / X6 contain IMUs, tracking via an IMU is imprecise mainly because of gyro drift. In an aviation context, neither the accelerometer nor the magnetometer cannot be used to offset gyro drift with sufficient results. Thus optical tracking approaches are investigated that allow for determining the users head orientation in relation to the cockpit, which, combined with a knowledge of the aircraft orientation, allows to offset gyro drift. Several optical tracking approaches are investigated: 'inside out', where a camera on the head-mounted display is used, using markerless SLAM-based tracking, tracking markers in front of and above the users head. An 'outside-in' approach is also investigated where an external camera is tracking the users head by tracking IR LEDs.