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. 2012 May 11;12(5):6347–6368. doi: 10.3390/s120506347

Table 3.

Robust vertical accuracy measures of the digital surface models based on ground check points in flat terrain.

Flat Terrain WorldView-2 RPCs-only - Ground truth WorldView-2 GCP-enhanced RPCs - Ground truth ADS 80 - Ground truth
Sample size 24 26 35
50% quantile (median) [m] −3.63 −0.24 0.08
NMAD [m] 0.48 0.22 0.21
68.3% quantile [m] −3.34 −0.02 0.14
95% quantile [m] −2.88 0.47 0.39
RMSE (without outliers) [m] (n = 24) 3.58 (n = 25) 0.33 (n = 35) 0.23