{
  "evidence_class": "owner_photo_conditional_reference_geometry_not_fitted_measurements",
  "owner_photo": "IMG_6329",
  "owner_dimensions_applied": false,
  "camera_source": "owner-side-view-6329.json",
  "camera_source_sha256": "2ad5fe012d262252528334edf59f09c515c108bc737641d82b368dfd4610ac72",
  "camera_refit": false,
  "scale_mm_per_body_unit": 846.6666666666667,
  "observed_upper_shoulder_pixels": [
    [
      201,
      611
    ],
    [
      270,
      609
    ],
    [
      340,
      608
    ]
  ],
  "held_out_upper_shoulder_pixels": [
    380,
    607
  ],
  "assumed_hand_sample_uncertainty_pixels": 5,
  "conditional_upper_samples_yz_units": [
    [
      0.9785467077734538,
      -1.8553315988268166
    ],
    [
      0.9952153560856334,
      -1.6245426719280456
    ],
    [
      1.0061442175908581,
      -1.4081103403035626
    ]
  ],
  "rear_transition_zy_units": [
    [
      -2.02,
      0.72
    ],
    [
      -2.02,
      0.9666535909581543
    ],
    [
      -1.8553315988268166,
      0.9785467077734538
    ]
  ],
  "upper_profile_zy_units": [
    [
      -1.8553315988268166,
      0.9785467077734538
    ],
    [
      -1.6245426719280456,
      0.9952153560856334
    ],
    [
      -1.4081103403035626,
      1.0061442175908581
    ],
    [
      -0.86,
      1.005
    ]
  ],
  "retained_rear_lower_zy_units": [
    -2.02,
    0.72
  ],
  "retained_forward_shoulder_zy_units": [
    -0.86,
    1.005
  ],
  "previous_profile": {
    "transition_zy_units": [
      [
        -2.02,
        0.72
      ],
      [
        -1.88,
        0.92
      ],
      [
        -1.65,
        0.96
      ]
    ],
    "upper_end_zy_units": [
      -0.86,
      1.005
    ]
  },
  "lamp_pose_reference": {
    "prior_geometry_revision": "94b47075",
    "centers_body_mm": {
      "left": [
        571.5000000000001,
        679.3734558524211,
        -1719.8060575279314
      ],
      "right": [
        -571.5000000000001,
        679.3734558524211,
        -1719.8060575279314
      ]
    },
    "rake_degrees": 22.0,
    "geometry_resized": false,
    "assumed_half_spacing_mm": 571.5000000000001,
    "lateral_basis": "Unmeasured prior: existing80mm profile placed near outer rear quarter; not an owner/factory spacing.",
    "observed_right_lamp_bounds_xyxy_pixels": [
      154,
      612,
      200,
      715
    ],
    "projected_right_lamp_bounds_xyxy_pixels": [
      155.86411566679328,
      616.2634770586668,
      198.30196792114293,
      710.4575120331978
    ],
    "bounds_residuals_pixels": [
      1.864115666793282,
      4.263477058666808,
      -1.698032078857068,
      -4.542487966802241
    ],
    "fit_variables": "Y/Z translation only; width/height/profile/rake held. Opposite side uses symmetry.",
    "old_centers_body_mm": {
      "left": [
        516.4666666666667,
        660.4000000000001,
        -1684.8666666666668
      ],
      "right": [
        -516.4666666666667,
        660.4000000000001,
        -1684.8666666666668
      ]
    }
  },
  "manufacturer_source": "https://www.bmh-ltd.com/vehicle-parts/mg-midget-parts/mg-midget-skin-panels/",
  "factory_panel_source": "https://www.spridgets.de/downloads/Parts-1977.pdf#page=231",
  "configuration_limits": "BMH lists CZJ590/591 rubber-bumper rear wings and generic CZJ598 lower panel. Factory231 distinguishes North-American CZJ642 from non-NA CZJ598; neither is identified as fitted or used as a drilling template.",
  "limits": "Conditional reconstruction under the unchanged wheel-derived camera, nominal axle/track references and estimated wheel-face offsets. IMG_6329 samples are hand-read with5px assumed uncertainty; lens bounds include occlusion/perspective uncertainty. Rear shoulder and opposite-side symmetry are not surveyed. Existing rear lower point, wheel/axle/bumper/floor stations and forward shoulder anchor stay. Curve interpolation and all body sections/crown/widths remain estimates. Lamp dimensions and22-degree rake stay; an explicit unmeasured lateral prior places the80mm reference profile near the existing outer quarter. Only lamp Y/Z are fitted; the result is not a unique3D pose, part identification, body receiver, fitted clearance, compressed gasket, optical configuration verification or removal path. No body holes are cut to force agreement.",
  "held_out_profile_comparison": {
    "previous": {
      "projected_pixels": [
        380.243927837651,
        620.5606162204509
      ],
      "residual_pixels": [
        0.24392783765097192,
        13.560616220450925
      ],
      "distance_pixels": 13.5628099252455
    },
    "revised": {
      "projected_pixels": [
        379.844966058301,
        610.0352196313795
      ],
      "residual_pixels": [
        -0.15503394169900275,
        3.035219631379505
      ],
      "distance_pixels": 3.039176489411279
    }
  }
}