2,725
edits
Changes
no edit summary
Most [[HMD]]s and smartphones contain [[magnetometer]]s, [[IMU]]s that detect the magnetic field of Earth.
===OpticOptical===One weakness of optic optical tracking is occlusion. Occlusion occurs when objects are hidden from the camera because they are behind other objects.
====Marker====
Optical tracking with mark consist of adding an unique marker onto an object you want to track. Then use a camera or multiple cameras to follow the movement and position of the marker. Finally algorithms are used to figure out the position and orientation of the object.
===Sensor Fusion===
Sensor fusion is when multiple tracking methods are used. The different methods can cover each other's weaknesses.
Inertial tracking can be used in conjunction with optical tracking. While optical tracking would be the main tracking method, when occlusion occurs, inertial tracking could estimate the position til the objects are visible to the optical camera again. inertial tracking could also generate position data in-between optical tracking's position data because inertial tracking has higher update rate.
[[Category:Terms]]
