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An '''ultrasonic positioning system''' may use the Kabsch algorithm to do point-set registration.
An '''ultrasonic positioning system''' may use the Kabsch algorithm to do point-set registration.
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+It needs a line of sight (auditory sight), which is a line of unimpeded travel between source and sensor.
Ivan Sutherland's report on the ultrasonic positioning system used with his 3D display did not mention any use of the Kabsch algorithm.<ref name="j688">{{cite conference | last=Sutherland | first=Ivan E. | title=A head-mounted three dimensional display | publisher=ACM Press | date=1968 | doi=10.1145/1476589.1476686 | page=757}}</ref>
Ivan Sutherland's report on the ultrasonic positioning system used with his 3D display did not mention any use of the Kabsch algorithm.<ref name="j688">{{cite conference | last=Sutherland | first=Ivan E. | title=A head-mounted three dimensional display | publisher=ACM Press | date=1968 | doi=10.1145/1476589.1476686 | page=757}}</ref>