metadata
id: ship
type: element
name: Ship
task_types:
- polygon_extraction
- instance_segmentation
- oriented_polygon
preferred_heads:
- validity
- context
- polygon
- instance
label_formats:
- polygon
- coco
- dota
positive_label: ship
negative_policy: unlabeled_is_ignore
typical_sensors:
- PMS
- PAN
- SAR
typical_resolutions_m:
- 0.5
- 1
- 2
- 3
- 10
Ship
Ships are object targets and should not be forced into a pure semantic segmentation class. Use polygon or instance heads when annotations support it.
Required Context
- Ports, aquaculture grids, bridges, and bright wave wakes are hard negatives.
- SAR and optical ship extraction should be sensor-aware.