Fig. 9

The influence of scanning distance on the accuracy indexes. S1 to S5 denote the distance sections, (0–5), (5–10), (10–15), (15–20), (20–25) m, respectively
The influence of scanning distance on the accuracy indexes. S1 to S5 denote the distance sections, (0–5), (5–10), (10–15), (15–20), (20–25) m, respectively