Changes

'''Markerless tracking''' is a method of [[positional tracking]] - the determination of position and orientation of an object within its environment. This is a very important feature in [[virtual reality]] (VR) and [[augmented reality]] (AR), making it possible to know the field-of-view and perspective of the user - allowing for the virtual environment to react accordingly or the placement of augmented reality content in accordance with real objects.

'''Markerless tracking''' is a method of [[3D tracking]] - the determination of position and orientation of an object within its environment. This is a very important feature in [[virtual reality]] (VR) and [[augmented reality]] (AR), making it possible to know the field-of-view and perspective of the user - allowing for the virtual environment to react accordingly or the placement of augmented reality content in accordance with real objects.

It uses [[SLAM]] or [[VIO]].

It uses [[SLAM]] or [[VIO]].