Table 5.

The vertical height of the object was estimated for the beginning and ending of every lift. The error was calculated as the estimated height minus the reference height. The measured values and error are shown for each of the 4 possible vertical levels. All values shown are in meters.

		Manually Labelled		Automatically Labelled
Level	Expected	Measured	Mean Error	Measured	Mean Error
floor	0.300	$0.452\pm 0.066$	0.152	$0.514\pm 0.089$	0.214
knee	0.840	$0.845\pm 0.049$	0.005	$0.861\pm 0.053$	0.021
chest	1.380	$1.283\pm 0.043$	−0.097	$1.286\pm 0.045$	−0.094
head	1.870	$1.641\pm 0.056$	−0.229	$1.640\pm 0.055$	−0.230