Mounting and calibration
Where the phone goes, and how it learns its own angle and height.
Proskopo estimates distance from where things sit in the camera image. That only works if it knows how the phone is tilted and how high it sits — which is what calibration measures. A good mount and a fresh calibration do more for accuracy than anything else.
Mounting
- Landscape, held firmly, so it can't slip or vibrate loose.
- Low and central, where it doesn't block your view of the road or cover an airbag.
- The camera sees straight ahead, with the lane markings in view and little dashboard in frame.
- Clean lens; avoid spots where the windscreen throws glare or dashboard reflections.
- Set it up before you drive. Never adjust the mount while moving.
Auto calibration
Park with the road ahead in view and open Calibrate → Auto. The phone reads its own level and tilt and finds the road ahead. Follow the cues until every check reads OK — bring the horizon into the band and hold still. It saves on its own once every check holds for two seconds; it takes about 30 seconds.
Manual calibration
If auto can't settle (an empty car park, a bend), use Calibrate → Manual: drag the guides onto the horizon, the top of the bonnet and the road centre where the lane lines meet, then enter the camera height — how far the phone sits above the road.
When the mount moves
If the phone shifts after calibrating, Live View shows MOUNT MOVED with the angle and RECALIBRATE WHEN PARKED. Distances are less reliable until you do. Don't recalibrate while driving.