Documentation for Axxon Next 4.5.0 - 4.5.10. Documentation for other versions of Axxon Next is available too.

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

  • Character height is at least 10px, preferably 20px or more.
  • Minimum resolution is 1280*720. The recommended resolution is 1920*1080.
  • Minimum frame rate for the Slow mode is 5 FPS. Minimum frame rate for the Fast mode is 20 FPS.
  • Maximum horizontal angle is 30°.
  • Maximum vertical angle is 45°.
  • Expected image contrast: the contrast difference between characters of the LP and the background should be at least 20 units with the image brightness scale from 0 to 255.
  • In order to recognize state license plates on high-speed roads, the camera should have the Global Shutter mode.
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