Documentation for Auto Intellect 5.6. Documentation for other versions of Intellect is available too.

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To ensure the recognition of the state license plates using the VIT software module, it is necessary to install and configure the video cameras in such a way that the following requirements are met:

Camera specifications
Video image
  • The symbols height for IP cameras should be not less than 20-30 px, for analog cameras - not less than 14-20 px, the stroke width should be not less than 2 px;
  • Minimum allowed contrast with evenly dirty number plate should not be less than 10% ) contrast differentiation of symbols to the background is 25 on 256 point scale);
  • Maximum allowed uneven dirtiness is not more than 12% (ratio of the dirty area of the number plate to its whole area);
  • Geometrical proportions of the number plate picture should not differ from such proportions of the number plate itself with more than 10%.
Camera positioning
  • The camera should be installed permanently (for detailed installation information, see the vendor documentation);
Vehicle speed
  • In Slow mode - vehicle speed is no more than 20 km/h

  • In Fast mode - vehicle speed is not more than 150 km/h

Examples of LP images that will be recognized correctly and completely:

To ensure the correct recognition of the LP number, its image should not be:

  • unequally lit;
  • overexposed;
  • blurred (due to incorrect shutter speed settings for the speed of the vehicle);
  • distorted (due to incorrect placement of the camera);
  • interlaced;
  • dirty.

Attention!

Any deviation from the above requirements reduces the likelihood of correct number recognition.

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