Slide 25
Slide 25 text
Accuracy assessment of GRID data
• Relatively, large error in liner feature,
such as paddy field
– caused by input method
25
Improvement of HABS and father works
Area(%)
Point Grid Polygon
Paddy 14.17 14.43 13.56
Upland field 18.39 18.80 19.11
Tea, orchard 0.14 0.14 0.00
Wood 40.11 40.91 40.24
Grass 18.64 18.77 18.48
Village, road 2.80 2.95 2.59
Marsh 0.77 0.79 1.02
Water 4.99 5.39 5.00
Total 100.00 100.00 100.00
Land use ratio (point, grid)
Land use ratio (polygon)
point
grid