Table 3. Accuracy of passage direction recognition.

Section type Capture angles No. videos Correct recognition False recognition
Only straight 25° 15 15 0
30° 15 15 0
35° 15 15 0
Only turn 25° 10 10 0
30° 10 10 0
35° 10 8 2
Combined straight and turn 25° 10 10 0
30° 10 7 3
35° 10 5 5
Crossroad 25° 10 9 1
30° 10 6 4
35° 10 4 6
Crosswalk 25° 5 5 0
30° 5 4 1
35° 5 4 1