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Table 3 Accuracy comparison between different algorithms for filling pits (unit: m)

From: Cloth simulation-based construction of pit-free canopy height models from airborne LiDAR data

LandscapesPit proportionRaw CHMMeanMedianOur algorithm
Hemisphere10%0.54280.43340.3080.2031
20%0.75620.53910.37530.2783
30%0.93290.66520.50980.357
40%1.06850.7870.67470.4248
50%1.19480.92170.87520.4648
60%1.28821.02991.03240.5209
On average0.96390.72940.62920.3748
Cone10%1.3040.72990.50770.4135
20%1.85071.07310.74260.4814
30%2.26751.41231.05030.5753
40%2.63081.78231.51980.6553
50%2.95882.16232.07560.7523
60%3.12922.39312.41990.8503
On average2.35681.59221.3860.6214
  1. Note: The values in bold are the smallest ones in each line