Measurement of Apparent Building Damage by Using a Single Image

Table 4

Test results for measuring point based on various pixel points.

Possible points	Actual distance (m)	Measured distance (m)	Relative error (%)
1	1.173	1.190	1.45
2		1.203	2.56
3		1.224	4.35
4		1.168	0.43
5		1.193	1.71
6		1.218	3.84
7		1.187	1.19
8		1.201	2.39
9		1.223	4.26