To produce a better understanding of your proposed camera view/s, an industry standard has been produced called ‘DORI’ which is an acronym for:

  • Detect
  • Observe
  • Recognise
  • Identify

These measurements are calculated by several factors, these being:

  • Camera Installation height
  • Distance/target required from camera
  • Target height
  • Sensor format
  • Focal length (Lens)
  • Camera resolution

These particulars would produce not just the ‘FOV’, (Field of View) along with ‘Horizontal angle’. But the ‘DORI’ measurements/scale, giving a better understanding of your views.