{
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    ],
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    ]
  },
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    [
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  "calibration": {
    "active": false,
    "points": [
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      ],
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      ],
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      ],
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      ]
    ],
    "height_ref_p1": [
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    ],
    "height_ref_p2": [
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    ]
  },
  "person_conf": 0.5
}