1.1 Choosing a Location (Continued)
All the license plates that meet the on-frame size
criteria below will be recognized in the selected
area.
•
130-300 pixels for regular EU plates
•
80-300 pixels for US plates without stacked
symbols (small ones)
•
160-300 pixels for US plates with stacked symbols
Color coded pixel counts are available in the settings
section of RoadWatch.
Recommended
30 degrees Maximum Horizontal Angle
Fig. 3
Camera shown from top
30º
Maximum Horizontal Angle
Minimum Forward Distance
Maximum Forward Distance
Fig. 4
Camera can cover 1 road lane.
Normally, setting recognition zone (see orange
frame below) in lower half of camera view is
sufficient and favours app performance.
4 | RoadWatch
Quick Reference Guide
