{
  "schema": "vtl-method-diagnostic-v0.1",
  "source": "retained in the internal evidence archive; not included in this public package",
  "source_sha256": "6712099e5f62dd0e8620b6f655aa29edca023fb48ed865983533d598e9111e38",
  "frame": 24,
  "substrate": "lstar",
  "structural_mask_percentile": 85,
  "dimensions": {
    "width": 960,
    "height": 540
  },
  "coordinates": {
    "delta_x": 0.0278,
    "delta_y": -0.0146,
    "rho_r": 0.1351,
    "mu": 0.9844,
    "x_p": 0.0426,
    "theta": 0.1243,
    "d_s": 0.0075,
    "sdi": 0.1474,
    "mass_fraction": 0.101,
    "mask_sha256": "63a20c49f21221c2d37c86486ea71cd506c95603321683f26436e638908df38b",
    "mask_mode": "REGION_FIELD",
    "n_components": 5,
    "largest_component_fraction": 0.9844
  },
  "centroid": {
    "x_normalized": 0.5278,
    "y_normalized": 0.4853
  },
  "panels": {
    "rendered-frame.png": "unaltered retained Unreal render",
    "lstar-field.png": "ISR perceptual-lightness substrate",
    "edge-field.png": "ISR normalized Sobel edge field",
    "structural-mask.png": "85th-percentile VTL structural mask; blue inner rectangle marks the 8% peripheral band and amber cross marks the weighted structural centroid"
  }
}