cameras.json

{
  "camera_spec": {
    "width": 1600,
    "height": 1200,
    "intrinsic_matrix": [
      [1931.7, 0.0, 800.0],
      [0.0, 1931.7, 600.0],
      [0.0, 0.0, 1.0]
    ]
  },
  "parameters": {
    "fx": 1931.7,
    "fy": 1931.7,
    "cx": 800.0,
    "cy": 600.0
  }
}