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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