The DORI (detect, observe, recognize, identify) distance gives the general idea of the camera ability to distinguish persons or objects within its field of view.
It is calculated based on the camera sensor specification and the criteria given by EN 62676-4: 2015.
| DORI | Detect | Observe | Recognize | Identify |
| Defintion | 25 px/m | 63 px/m | 125 px/m | 250 px/m |
| Distance(Tele) | 1600.0 m (5249.3 ft) | 634.9 m (2083.0 ft) | 320.0 m (1049.9 ft) | 160.0 m (524.9 ft) |
