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Table 3 The occlusion effect caused by tree stems

From: Quantification of occlusions influencing the tree stem curve retrieving from single-scan terrestrial laser scanning data

Plot ID Totally blocked stems Partly blocked stems
Number Percentagea Number Mean bias (cm)
1 1 1/3 1 −7.4
4 4 2/3 5 −8.6
5 7 1/4 1 −8.3
6 10 2/3 5 −19.2
10 9 2/3 3 −18.2
12 11 55 8 −10.5
16 4 1 6 −12.8
18 2 1 4 −24.0
19 2 2/3 0
20 10 1/4 7 −7.8
22 3 1 1 −19.3
Mean 2/3 −13.6
  1. Note: aThe percentage of the undetected stems caused by tree stems in all undetected stems