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Table 2 Summary of experimental data extract from the case study

From: A step-by-step construction site photography procedure to enhance the efficiency of as-built data visualization: a case study

 

First stage

 

Second stage

 
  

Experiment 1

Experiment 2

Experiment 3

Total no. of images

399

118

80

26

Image resolution (pixels)

various

2304x1728

2592x1944

2400x1800

No. of used images

99

100

80

26

Recall

0.25

0.85

1.00

1.00

No. of points recovered

36,072

36,221

17,345

3,646

Computation time

375 minutes

330 minutes

135 minutes

13 minutes