Selection by Minimizing MAE (mean absolute error)

  • 5 meter interval sampling of contours
  • 5 meter interval sampling of terrain skeleton
  • [5 10 15 20 25 30 40 50 60] meter thinning (snapping) radius

MAE vs. Thinning radius: terrain skeleton approach in red
MAE vs. Thinning radius: terrain skeleton approach in red



    
    
 thinningpointsinterp_pointsmaerand_mae
1 5 3375 3318 0.59 0.12
2 10 1730 1693 0.60 0.28
3 15 1058 1040 0.60 0.41
4 20 698 691 0.66 0.57
5 25 501 495 0.67 0.76
6 30 381 379 0.76 1.03
7 40 231 227 0.91 1.89
8 50 152 150 1.17 2.15
9 60 117 117 1.35 2.61