{
  "schema": "org.iphonotype.helios-benchy-final-benchmark/v1",
  "title": "Observed four-system comparison",
  "metric_definition": "Shared CAD target at fixed native scale. Lower distances are better; higher CAD support is better.",
  "systems": {
    "helios": {
      "capture": {
        "duration": "33:18",
        "samples": "72 projection images",
        "source_frames": 72,
        "accepted_poses": null
      },
      "geometry": "16,274 registered measured points",
      "registration": "Fixed native-scale registration",
      "metrics": {
        "cad_coverage_pct": { "within_1mm": 26.363, "within_2mm": 62.131, "within_5mm": 97.319 },
        "scan_precision_pct": { "within_1mm": 49.274917, "within_2mm": 82.253902, "within_5mm": 97.474499 },
        "scan_to_cad": { "median_mm": 1.018369, "p95_mm": 3.731249 },
        "cad_to_scan": { "median_mm": 1.53727, "p95_mm": 4.639242 },
        "symmetric_mean_mm": 1.717332
      }
    },
    "iphone12": {
      "capture": {
        "duration": "2:39",
        "samples": "98 HEIC images",
        "source_frames": 98,
        "accepted_poses": 98
      },
      "geometry": "100,000 surface samples from the Object Capture mesh",
      "registration": "Fixed native-scale registration",
      "metrics": {
        "cad_coverage_pct": { "within_1mm": 58.54, "within_2mm": 76.475, "within_5mm": 98.542 },
        "scan_precision_pct": { "within_1mm": 69.778, "within_2mm": 87.02, "within_5mm": 99.957 },
        "scan_to_cad": { "median_mm": 0.752742, "p95_mm": 4.263839 },
        "cad_to_scan": { "median_mm": 0.844942, "p95_mm": 4.607408 },
        "symmetric_mean_mm": 1.342833
      }
    },
    "iphone15": {
      "capture": {
        "duration": "1:30",
        "samples": "100 HEIC images",
        "source_frames": 100,
        "accepted_poses": 100
      },
      "geometry": "100,000 surface samples from the Object Capture mesh",
      "registration": "Fixed native-scale registration",
      "metrics": {
        "cad_coverage_pct": { "within_1mm": 42.481, "within_2mm": 75.591, "within_5mm": 94.515 },
        "scan_precision_pct": { "within_1mm": 49.681, "within_2mm": 85.855, "within_5mm": 99.989 },
        "scan_to_cad": { "median_mm": 1.004885, "p95_mm": 3.693684 },
        "cad_to_scan": { "median_mm": 1.168971, "p95_mm": 5.066666 },
        "symmetric_mean_mm": 1.496617
      }
    },
    "iphone17": {
      "capture": {
        "duration": "4:08",
        "samples": "139 HEIC images",
        "source_frames": 139,
        "accepted_poses": 139
      },
      "geometry": "100,000 surface samples from the Object Capture mesh",
      "registration": "Fixed native-scale registration",
      "metrics": {
        "cad_coverage_pct": { "within_1mm": 40.591, "within_2mm": 67.412, "within_5mm": 99.167 },
        "scan_precision_pct": { "within_1mm": 54.023, "within_2mm": 83.504, "within_5mm": 99.859 },
        "scan_to_cad": { "median_mm": 0.933188, "p95_mm": 3.050703 },
        "cad_to_scan": { "median_mm": 1.248723, "p95_mm": 4.10688 },
        "symmetric_mean_mm": 1.465701
      }
    }
  }
}