AI · Model card
Model Card: SKYSWEEP FOD Detector v2.1
SKYSWEEP is a fictional system. All metrics and datasets are illustrative.
| Field | Value |
|---|---|
| Model name | SKYSWEEP FOD Detector |
| Version | 2.1.0 |
| Model type | Single-stage object detector (convolutional backbone) |
| Input | 1920 × 1080 RGB frames from fixed runway-edge cameras |
| Output | Bounding boxes, object class, and confidence score (0.0–1.0) |
| Owner | Airfield Systems AI Team (fictional) |
| Last reviewed | 2026-09-30 |
1. Intended Use
SKYSWEEP flags possible foreign object debris (FOD) on runways and taxiways so that airfield personnel can inspect and clear it.
Intended users: Airfield management and FOD-walk crews.
Decision authority: SKYSWEEP is a decision-support tool. A trained human confirms every detection before any runway closure or clearance action.
Deactivation: Operators can disable SKYSWEEP at any time; scheduled FOD walks continue as normal.
Out-of-scope uses
Do not use SKYSWEEP to:
- Certify a runway as clear without a human inspection
- Detect wildlife, personnel, or vehicles (the model was not trained for these classes)
- Process imagery from moving or airborne cameras
2. Performance
Evaluated on a held-out test set of 12,400 frames from three airfields not seen in training.
| Condition | Recall | Precision | Frames |
|---|---|---|---|
| Daylight, dry | 0.96 | 0.91 | 6,800 |
| Daylight, wet | 0.92 | 0.86 | 2,100 |
| Night (IR-assisted) | 0.88 | 0.83 | 2,700 |
| Fog / visibility < 800 m | 0.71 | 0.78 | 800 |
Recall drops to 0.71 in fog. In low-visibility conditions, operators must perform a manual FOD walk regardless of model output.
Detection threshold: 0.45 confidence. Lowering the threshold increases recall but roughly doubles the false-alarm rate.
3. Training Data
| Attribute | Description |
|---|---|
| Source | 310,000 labeled frames from 9 airfields (fictional) |
| Classes | Metal hardware, tire fragments, plastic, stones > 2 cm, tools |
| Labeling | Two independent annotators per frame; disagreements resolved by a third reviewer |
| Known gaps | Snow-covered surfaces are underrepresented (< 1% of frames) |
4. Limitations and Failure Modes
| Failure mode | Effect | Mitigation |
|---|---|---|
| Debris smaller than 2 cm | Missed detection | Scheduled manual FOD walks remain required |
| Painted runway markings in low sun | False alarms | Operator review; per-camera masking |
| Camera lens contamination | Degraded recall | Automated image-quality check halts inference and alerts the operator |
| Dataset shift (new pavement type) | Unknown | Re-validate before deployment at any new airfield |
5. Responsible AI Alignment
This section maps the model to the DoD AI Ethical Principles and the NIST Artificial Intelligence Risk Management Framework (AI RMF 1.0, January 2023).
| DoD principle | How it is addressed |
|---|---|
| Responsible | Humans confirm every detection; the model cannot close or clear a runway |
| Equitable | Test set spans three unseen airfields and four lighting/weather conditions, with results reported per condition (Section 2) to expose uneven performance |
| Traceable | Training data lineage, labeling procedures, and model versions are recorded |
| Reliable | Performance reported per operating condition, not as a single average |
| Governable | Operators can disable the model (Section 1); the image-quality check halts inference and alerts the operator (Section 4) |
| NIST function | Artifact |
|---|---|
| Govern | Model owner and last-review date listed in this card; re-validation required before deployment at any new airfield (Section 4) |
| Map | Intended and out-of-scope uses (Section 1) |
| Measure | Condition-level metrics (Section 2) |
| Manage | Failure modes and mitigations (Section 4) |
6. Revision History
| Version | Date | Change |
|---|---|---|
| 2.1.0 | 2026-09-30 | Added night (IR-assisted) evaluation; documented fog limitation |
| 2.0.0 | 2026-05-12 | Retrained on 3 additional airfields |
| 1.0.0 | 2025-11-03 | Initial release |