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The following camera functions should be disabled:

  1. Video information accumulation mode / night mode;
  2. Permanent automatic image sharpness adjustment;
  3. Motion detectors;
  4. Any information from the camera (name, date, time, etc) inserted in the video image.

The declared recognition quality is guaranteed if the cameras are installed at angles of not more than 20 degrees to the perpendicular to the plate. In case of larger angles (up to 45 degrees) the numbers will be recognized, although the recognition accuracy will decrease.

The following table shows the main parameters required for camera installation.

Parameter

Maximum value

Recommended (optimal) value

Camera height

20 m

6 m

Vertical inclination

30 º

18 º

Horizontal inclination

20 º

5-10 º

Maximum inclination of the license plate

10 º

10 º

Control zone width of a CCTV camera:

  • 3 m – frontal camera location;
  • 3.2--3.7 m - side location with an angle of no more than 10-20.

Zone width of a 1 Mpix digital camera:

  • 6.5 m – frontal location.

Zone width of a 3 Mpix digital camera:

  • 11 m – frontal location.

Basic characteristics of used video cameras are presented in the General requirements for mounting and configuring of cameras section.