Changes

An '''ultrasonic positioning system''' may use the Kabsch algorithm to do point-set registration.

An '''ultrasonic tracking system''' is a 3D tracking system that uses ultrasonic sound. It may do multilateration. It may use the Kabsch algorithm to do [[point-set registration]].

 

It may be used, for example, in an [[AR glasses]] system to track the [[position and orientation]] of the glasses.

It needs a line of sight (auditory sight), which is a line of unimpeded travel between source and sensor.

It needs a line of sight (auditory sight), which is a line of unimpeded travel between source and sensor.