Ground sampling distance or point-to-point estimations from the lidar scanners. Tabular values estimated by Yijun Liao, September 2019.
Table 1. Point-to-point distance (level to the scanner).
|
|
Resolution |
Quality |
Angular Resolution (o) |
Point-to-Point distance (mm) |
Time (min) |
||||
|
10 m |
20 m |
30 m |
40 m |
50 m |
(no color) |
||||
|
350 |
1/4 |
3x |
0.0352 |
6.136 |
12.270 |
18.408 |
24.544 |
30.680 |
04:35 |
|
1/4 |
4x |
0.0352 |
6.136 |
12.270 |
18.408 |
24.544 |
30.680 |
08:09 |
|
|
1/5 |
3x |
0.0439 |
7.670 |
15.340 |
23.010 |
30.680 |
38.350 |
03:17 |
|
|
1/5 |
4x |
0.0439 |
7.670 |
15.340 |
23.010 |
30.680 |
38.350 |
05:35 |
|
|
1/8 |
3x |
0.0703 |
12.272 |
24.544 |
36.816 |
49.088 |
61.360 |
01:54 |
|
|
1/8 |
4x |
0.0703 |
12.272 |
24.544 |
36.816 |
49.088 |
61.360 |
02:47 |
|
|
|
|
|
|
|
|
|
|
|
|
|
130 |
1/4 |
3x |
0.0352 |
6.136 |
12.270 |
18.408 |
24.544 |
30.680 |
07:53 |
|
1/4 |
4x |
0.0352 |
6.136 |
12.270 |
18.408 |
24.544 |
30.680 |
11:20 |
|
|
1/5 |
3x |
0.0439 |
7.670 |
15.340 |
23.010 |
30.680 |
38.350 |
06:36 |
|
|
1/5 |
4x |
0.0439 |
7.670 |
15.340 |
23.010 |
30.680 |
38.350 |
08:54 |
|
|
1/8 |
3x |
0.0703 |
12.272 |
24.544 |
36.816 |
49.088 |
61.360 |
05:12 |
|
|
1/8 |
4x |
0.0703 |
12.272 |
24.544 |
36.816 |
49.088 |
61.360 |
06:06 |
|
Table 2. Point-to-point distance at ground level (1.7 meter scanner height).
|
|
Resolution |
Quality |
Angular Resolution (o) |
Point-to-Point distance with Scan Height 1.7 m (mm) |
Time (min) |
||||
|
10 m |
20 m |
30 m |
40 m |
50 m |
(no color) |
||||
|
350 |
1/4 |
3x |
0.0352 |
37.272 |
146.477 |
329.458 |
587.024 |
919.999 |
04:35 |
|
1/4 |
4x |
0.0352 |
37.272 |
146.477 |
329.458 |
587.024 |
919.999 |
08:09 |
|
|
1/5 |
3x |
0.0439 |
46.632 |
183.430 |
412.952 |
736.478 |
1155.307 |
03:17 |
|
|
1/5 |
4x |
0.0439 |
46.632 |
183.430 |
412.952 |
736.478 |
1155.307 |
05:35 |
|
|
1/8 |
3x |
0.0703 |
74.816 |
295.100 |
666.208 |
1915.030 |
1874.449 |
01:54 |
|
|
1/8 |
4x |
0.0703 |
74.816 |
295.100 |
666.208 |
1915.030 |
1874.449 |
02:47 |
|
|
|
|
|
|
|
|
|
|
|
|
|
130 |
1/4 |
3x |
0.0352 |
37.272 |
146.477 |
329.458 |
587.024 |
919.999 |
07:53 |
|
1/4 |
4x |
0.0352 |
37.272 |
146.477 |
329.458 |
587.024 |
919.999 |
11:20 |
|
|
1/5 |
3x |
0.0439 |
46.632 |
183.430 |
412.952 |
736.478 |
1155.307 |
06:36 |
|
|
1/5 |
4x |
0.0439 |
46.632 |
183.430 |
412.952 |
736.478 |
1155.307 |
08:54 |
|
|
1/8 |
3x |
0.0703 |
74.816 |
295.100 |
666.208 |
1915.030 |
1874.449 |
05:12 |
|
|
1/8 |
4x |
0.0703 |
74.816 |
295.100 |
666.208 |
1915.030 |
1874.449 |
06:06 |
|