{
  "class_names": [
    "heart_ventricle_left",
    "heart_atrium_left",
    "heart_ventricle_right",
    "heart_atrium_right",
    "heart_myocardium",
    "pulmonary_artery",
    "heart",
    "rib_left_1",
    "rib_left_2",
    "rib_left_3",
    "rib_left_4",
    "rib_left_5",
    "rib_left_6",
    "rib_left_7",
    "rib_left_8",
    "rib_left_9",
    "rib_left_10",
    "rib_left_11",
    "rib_left_12",
    "rib_right_1",
    "rib_right_2",
    "rib_right_3",
    "rib_right_4",
    "rib_right_5",
    "rib_right_6",
    "rib_right_7",
    "rib_right_8",
    "rib_right_9",
    "rib_right_10",
    "rib_right_11",
    "rib_right_12",
    "aorta",
    "vertebrae_T2",
    "vertebrae_T3",
    "vertebrae_T4",
    "vertebrae_T5",
    "vertebrae_T6",
    "vertebrae_T7",
    "vertebrae_T8",
    "vertebrae_T9",
    "vertebrae_T10",
    "vertebrae_T11",
    "vertebrae_T12",
    "aorta_long",
    "lung_upper_lobe_left",
    "lung_upper_lobe_right",
    "lung_middle_lobe_right",
    "lung_lower_lobe_left",
    "lung_lower_lobe_right",
    "clavicula_left",
    "clavicula_right",
    "humerus_left",
    "humerus_right",
    "sternum"
  ],
  "channel_count": 54,
  "input_size": [
    384,
    384
  ],
  "native_mask_grid": [
    96,
    96
  ],
  "normalization": {
    "input": "2D grayscale uint8 scaled to [0,1]",
    "mean": 0.4897996446751163,
    "std": 0.2952534283781206
  },
  "nominal_degrees": {
    "AP": 0.0,
    "PA": 180.0,
    "LA": 90.0,
    "225": 22.5,
    "45": 45.0,
    "675": 67.5,
    "1125": 112.5,
    "135": 135.0,
    "1575": 157.5
  },
  "view_requirement": "Supply the acquisition view explicitly; the model does not infer it from pixels. Nominal lateral/oblique buckets do not establish calibrated physical azimuth."
}