{
  "schema": 1,
  "recorded_on": "2026-09-06",
  "title": "HerdProof recorded project evidence",
  "detector": {
    "model": "corrected-full-yolov8n-v2",
    "confidence": 0.7,
    "metrics": {
      "precision": 0.819192,
      "recall": 0.779059,
      "f1": 0.798621,
      "count_mae": 3.03,
      "images": 77,
      "annotated": 1041,
      "predicted": 990,
      "matched": 811,
      "unmatched_predictions": 179,
      "missed_annotations": 230
    },
    "scope": "Exploratory previously inspected test benchmark with provisional labels; not fresh blind validation"
  },
  "overlap": {
    "scope": "Controlled stationary-cow crop suites with supplied annotation boxes and known identities. Separate from detector accuracy and whole-herd validation.",
    "suites": {
      "current": {
        "cases": 96,
        "exact_cases": 96,
        "registrations_passed": 96,
        "target_edge_cows_matched": 96,
        "expected_matches": 836,
        "missed_matches": 0,
        "wrong_matches": 0
      },
      "holdout": {
        "cases": 96,
        "exact_cases": 96,
        "registrations_passed": 96,
        "target_edge_cows_matched": 96,
        "expected_matches": 457,
        "missed_matches": 0,
        "wrong_matches": 0
      }
    }
  },
  "counting_example": {
    "status": "needs_edge_recapture",
    "source": "model_predictions",
    "processed_images": 2,
    "estimated_unique_observed": 18,
    "coverage_verified": false,
    "limitations": [
      "Estimated distinct sightings; detection and association errors remain possible.",
      "Sparse photographs do not verify complete property coverage.",
      "Different flights and capture dates are reported separately, never summed as one herd."
    ],
    "surveys": [
      {
        "estimated_unique_observed": 18,
        "images": 2,
        "raw_observations": 30,
        "repeated_observations_removed": 12,
        "status": "needs_edge_recapture",
        "survey": "Mauron/DJI_202311071416_061 / 2023-11-07",
        "unresolved_clipped_tracks": 1,
        "verified_overlap_pairs": 1
      }
    ]
  },
  "attribution": {
    "creators": "Louise Helary and Adrien Lebreton / Institut de l’Elevage",
    "dataset": "ICAERUS grazing-cow v2",
    "license": "CC BY 4.0",
    "url": "https://doi.org/10.5281/zenodo.11048412"
  },
  "note": "Recorded technical results, separate from the selected live survey. No whole-herd inventory, ownership, lending outcome or time saving is established."
}