When using LPR, it is recommended to focus on 1-3 lanes so that passing vehicles take up most of the frame as they pass through the scene. LPR cameras also operate in the infrared range of the light spectrum instead of visible range. This is because license plates are highly reflective for infrared light and are designed to be read in that spectrum.
A customer may want to also monitor the scene while using LPR cameras. In this case, a context camera can be used to provide a broader view without compromising the LPR's performance. Context cameras are also useful for general security purposes and capturing balanced contrast color footage to better investigate observed vehicles.