How Virtual Reality Headsets Keep a Room in View
How Virtual Reality Headsets Keep a Room in View
Cameras and motion sensors work together to estimate where the headset is as the wearer moves.
An inertial sensor reacts quickly to turns and acceleration. Cameras observe details in the room and help correct the drift that builds up when a system relies on inertial measurements alone.
A blank wall, dim room or large mirror can leave the tracking system with fewer dependable features. Controllers can also lose sight of the headset's cameras when they move behind the user.
A tracking test should include reaching sideways, turning away from the light and moving near the boundary. These ordinary movements reveal how gracefully the device recovers from uncertainty.
