Figure 1.
Miniguide US™.
Figure 2.
‘K’ Sonar™ * Device.
Figure 3.
Man-made vertical obstacle.
Figure 4.
Man-made horizontal obstacle.
Table 1.
Scoring of correct and incorrect responses.
Figure 5.
Subject A through E: Number of obstacles correctly identified.
Figure 6.
Subject A through E: Length of time by device/participant.
Figure 7.
Length of time by type of device.
Table 2.
Average obstacles identified per minute.