Research Article
A Two-Stage Optimization Strategy for Fuzzy Object-Based Analysis Using Airborne LiDAR and High-Resolution Orthophotos for Urban Road Extraction
Table 3
Factors and their levels used to optimize image segmentation.
| | Factor | Level 1 | Level 2 | Level 3 | Level 4 |
| | Segmentation level 1 | | Scale | 30 | 35 | 40 | 45 | | Shape | 0.1 | 0.3 | 0.5 | 0.9 | | Compactness | 0.1 | 0.3 | 0.5 | 0.9 |
| | Segmentation level 2 | | Scale | 105 | 110 | 115 | 120 | | Shape | 0.1 | 0.3 | 0.5 | 0.9 | | Compactness | 0.1 | 0.3 | 0.5 | 0.9 |
| | Segmentation level 3 | | Scale | 135 | 140 | 145 | — | | Shape | 0.1 | 0.5 | 0.9 | — | | Compactness | 0.1 | 0.5 | 0.9 | — |
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