Table 7 Accuracy assessment of coastline extraction using third-party validation datasets.
Datasets | Time | Offset | Mean Offset | RMSE | Sample Points number | ||
|---|---|---|---|---|---|---|---|
<=1 pixel | <=2 pixel | <=3 pixel | |||||
GSHHG | 2010 | 69.6% | 84.3% | 94.5% | 30.34 m | 43.42 m | 37514 |
GSHHG | 2015 | 67.1% | 81.5% | 88.0% | 32.30 m | 41.01 m | 44370 |
GMSSD | 2015 | 68.1% | 81.9% | 92.6% | 26.72 m | 39.95 m | 40976 |
OpenStreetMap | 2020 | 69.8% | 87.6% | 95.9% | 29.8 m | 39.46 m | 37472 |
