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A rigid body that has physical size can be rotated on three axes, and positionally shifted on three axes, for a total of six degrees of freedom, also known as [[6DOF]].
A rigid body that has physical size can be rotated on three axes, and positionally shifted on three axes, for a total of six degrees of freedom, also known as [[6DOF]].
−Methods of 3D tracking include [[SLAM]] and [[electromagnetic tracking]].
+Methods of 3D tracking include [[electromagnetic tracking]] and [[SLAM]] (or [[VIO]]).
== History ==
== History ==