{
  "schemaVersion": 1,
  "title": "Hina procedural character — numerical fitting summary",
  "reportScope": "Public summary of authored parameter-fitting outputs. Numerical fit scores and rendered visual-review scores are separate measures.",
  "iterations": 10000,
  "targetIterations": 10000,
  "uniqueCandidateCount": 10000,
  "iterationType": "Distinct numerical parameter evaluations, separate from rendered visual refinement passes",
  "fitScore": 89.5665878,
  "visualScore": null,
  "visualReviews": 0,
  "finalParameterEvaluations": 20000,
  "priorDiagnosticParameterEvaluations": 40000,
  "currentEnvironmentParameterEvaluations": 20000,
  "cumulativeParameterEvaluations": 60000,
  "iterationAccounting": {
    "finalPublishedRuns": 2,
    "candidatesPerFinalRun": 10000,
    "finalPublishedCandidateRows": 20000,
    "earlierDiagnosticRuns": 4,
    "earlierDiagnosticCandidates": 40000,
    "earlierFullCsvFilesIncluded": false,
    "note": "The total includes 40,000 earlier authoring diagnostics plus 20,000 final fixed-pose evaluations. The published full CSVs contain the final 20,000 evaluations only."
  },
  "headPose": {
    "yawRadians": 0.45,
    "rollRadians": -0.12,
    "pivotMetres": [
      0,
      1.39,
      0
    ],
    "rotationOrder": "Rz(roll) * Ry(yaw), yaw applied first",
    "policy": "Fixed to the visually accepted pose for both final numerical runs."
  },
  "bestCamera": {
    "projection": "perspective",
    "yaw": -0.038137410474,
    "pitch": 0.072270155699,
    "centerX": -0.046774626808,
    "centerY": 0.893496409553,
    "span": 1.869846624499,
    "distance": 3.8
  },
  "cameraApplication": {
    "projection": "perspective",
    "radialDistanceMetres": 3.8,
    "verticalSpanMetres": 1.869846624499,
    "fovDegrees": 27.64418539993,
    "aspect": 0.3913738019169329,
    "positionMetres": [
      -0.191283452488,
      1.167884002309,
      3.787324734987
    ],
    "targetMetres": [
      -0.046774626808,
      0.893496409553,
      0
    ],
    "up": [
      0,
      1,
      0
    ]
  },
  "metrics": {
    "weightedRmsePx": 13.062632073,
    "normalizedRmse": 0.010433412199,
    "robustLossPx2": 77.578275619,
    "maxLandmarkErrorPx": 21.574774762
  },
  "scoreDefinition": {
    "name": "Numerical landmark alignment score",
    "weightedRmsePx": "sqrt(sum(weight_i * squared_2D_reprojection_error_i) / sum(weight_i))",
    "normalizedRmse": "weightedRmsePx / 1252",
    "fitScore": "100 * clamp(1 - normalizedRmse / 0.10, 0, 1)",
    "interpretation": "95 on this numerical scale corresponds to 6.26 pixels weighted RMSE; it does not establish rendered likeness or production quality.",
    "selectionObjective": "Minimize fixed-weight radial Huber loss with delta=12 pixels; retain the original weights when reporting RMSE."
  },
  "method": {
    "manualCorrespondenceCount": 17,
    "annotationApproach": "Approximate correspondences were interpreted visually. Input locations and the supplied reference are excluded from this public metadata.",
    "search": "Seeded shifted Halton coverage, elite-assisted refinement, reflected coordinate search, and local polish.",
    "framing": "Constrained camera framing is optimized with weighted least squares and robust updates; perspective framing uses exact projection derivatives.",
    "evaluationAccounting": "Only unique outer candidate evaluations are counted; internal framing-solver steps are excluded.",
    "constraints": {
      "cameraYawRadians": [
        -0.35,
        0.65
      ],
      "cameraPitchRadians": [
        0,
        0.22
      ],
      "cameraCenterXMetres": [
        -0.15,
        0.1
      ],
      "cameraCenterYMetres": [
        0.78,
        1.08
      ],
      "verticalSpanMetres": [
        1.68,
        2.15
      ]
    },
    "limitations": [
      "Sparse landmark error does not measure complete silhouette, materials, expression, occlusion, or side-view quality.",
      "Approximate annotations and stylized anatomy can leave persistent residuals; those residuals were retained.",
      "The accepted head pose remained fixed during the final comparison."
    ]
  },
  "projectionComparison": [
    {
      "projection": "orthographic",
      "candidates": 10000,
      "fitScore": 89.38825104,
      "weightedRmsePx": 13.285909698,
      "robustLossPx2": 73.726426075,
      "camera": {
        "projection": "orthographic",
        "radialDistanceMetres": 5,
        "verticalSpanMetres": 1.855811053572,
        "fovDegrees": null,
        "aspect": 0.3913738019169329,
        "positionMetres": [
          -0.082470916151,
          1.007223577745,
          4.998574439061
        ],
        "targetMetres": [
          -0.050545674389,
          0.892182906229,
          0
        ],
        "up": [
          0,
          1,
          0
        ]
      }
    },
    {
      "projection": "perspective",
      "candidates": 10000,
      "fitScore": 89.5665878,
      "weightedRmsePx": 13.062632073,
      "robustLossPx2": 77.578275619,
      "camera": {
        "projection": "perspective",
        "radialDistanceMetres": 3.8,
        "verticalSpanMetres": 1.869846624499,
        "fovDegrees": 27.64418539993,
        "aspect": 0.3913738019169329,
        "positionMetres": [
          -0.191283452488,
          1.167884002309,
          3.787324734987
        ],
        "targetMetres": [
          -0.046774626808,
          0.893496409553,
          0
        ],
        "up": [
          0,
          1,
          0
        ]
      }
    }
  ],
  "publishedCsvFiles": [
    {
      "projection": "orthographic",
      "file": "exports/fit-history/run-001/iteration-log.csv",
      "scoredRows": 10000,
      "sha256": "aebf6c126de0a6ee881b1467b7a2469a9b22ee35935f420a0513520f9d067a54"
    },
    {
      "projection": "perspective",
      "file": "exports/iteration-log.csv",
      "scoredRows": 10000,
      "sha256": "88473886ccd60e965221f76573d7932388442f400286d853003c24f0b542f443"
    }
  ]
}