Patent ID: 11935267
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A head-mounted display device configured to be worn by a user, the display device comprising:
an at least partially see-through display;
a front-facing camera configured to image a real-world scene viewed by the user through the display;
one or more motion sensors configured to track motion of the head-mounted display device; and
a processor configured to:
select, as a calibration object, a real-world object that is currently visible in the imaged real-world scene and estimated, based on the tracked motion of the head-mounted display device, to remain visible to the front-facing camera for a duration sufficient to perform a calibration procedure; and
initiate the calibration procedure using the calibration object, the calibration procedure comprising deriving a calibration transformation to be used by the processor for calculating display positions for displaying virtual objects in alignment with corresponding real-world objects seen by the user through the display.