Patent ID: 11880034
Assignee: ROCKWELL COLLINS, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A head tracking system for a head worn display system, comprising:
at least one camera mounted to a mobile platform, the camera configured to capture one or more images associated with a head-worn display (HWD) worn by an operator of the mobile platform;
one or more sets of device-frame fiducial markers attached to the HWD;
one or more platform-frame fiducial markers fixed to the mobile platform, each platform-frame fiducial marker corresponding to position information of at least one constellation of marker elements relative to a platform reference frame;
the one or more sets of device-frame fiducial markers and the one or more platform-frame fiducial markers including one or more light-emitting diodes (LED);
and
one or more control processors in communication with the at least one camera, the one or more control processors configured to:
identify within the captured images at least one of 1) the one or more sets of device-frame fiducial markers or 2) the one or more platform-frame fiducial markers;
determine at least one initial device pose based on the one or more identified sets of device-frame fiducial markers, the initial device pose comprising a position of the HWD and an orientation of the HWD relative to the platform reference frame;
and
monitor the at least one initial device pose based on the position information corresponding to the one or more identified platform-frame fiducial markers.