Feasibility Investigation of Obstacle-Avoiding Sensors Unit without Image Processing

Table 6

Successful trials in detecting trenches. In the detection of the trench width, detected data are averaged with 100 trials.

Real trench dimension	Successful detection rate	Mean value (cm)	Max. value (cm)	Min. value (cm)	Variance (cm)
1.30 (cm) × 1.30 (cm)	55/100	−0.94	−0.85	−1.26	0.0098
2.00 (cm) × 2.00 (cm)	90/100	−1.67	−1.24	−2.32	0.0310