US 12,452,401 B1
System and method for measuring viewpoint fidelity in head mounted display
Matthew Edward Lawson, Wesley Chapel, FL (US)
Assigned to TRU SIMULATION + TRAINING, Lutz, FL (US)
Filed by TRU Simulation + Training, Lutz, FL (US)
Filed on Sep. 19, 2024, as Appl. No. 18/890,477.
Int. Cl. H04N 13/00 (2018.01); G06F 3/14 (2006.01); H04N 13/324 (2018.01); H04N 13/373 (2018.01); H04N 13/376 (2018.01); H04N 13/378 (2018.01); H04N 13/398 (2018.01)
CPC H04N 13/378 (2018.05) [G06F 3/1423 (2013.01); H04N 13/324 (2018.05); H04N 13/373 (2018.05); H04N 13/376 (2018.05); H04N 13/398 (2018.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
generating a virtual environment comprising at least a first shape and a second shape in a virtual viewpoint, wherein the first shape is in front of the second shape in the virtual viewpoint, the second shape is configured to adjust in the virtual viewpoint as the virtual viewpoint adjusts, the second shape is positioned in the virtual environment at a determined offset from the first shape along a test axis, and the first shape is affixed to the virtual viewpoint of the virtual environment, and the virtual viewpoint of the virtual environment is configured to adjust in response to movement of a head mounted display (HMD) on a test stand;
moving a position of the virtual viewpoint with respect to the second shape in response to the movement of the HMD on the test stand;
recording reference data associated with the moving of the position of the virtual viewpoint;
generating a positional displacement vector by at least comparing reference data of the second shape with reference data of the first shape; and
determining a HMD movement tracking error based on the positional displacement vector.