To ensure the recognition of state license plates with License plate recognition (BRS), it is necessary to install and configure the cameras to meet the following requirements:

Camera
  • Minimum video resolution is 640*480, recommended resolution is 720p or 1080p
  • Minimum frame rate is 15 FPS, recommended frame rate is 25–30 FPS
  • Autofocus and zoom would be useful for making small adjustments after configuring the detection tool
  • Auto white balance
  • IR for night mode with good contrast of license plate images
  • HDR or WDR
  • In order to recognize state license plates on high-speed roads, the camera must have the Global Shutter mode
Video
  • Video image must be clear, contrasting, without distortion, not blurred
  • Video image must have minimum noise in low light conditions
  • Size of the license plate must be 15–70% of the total size of the image
  • License plate must contain no more than two rows of characters

Camera installation

  • Video camera must be mounted at 0.6–2.4 meters above the ground
  • Angle formed by the lower line of the license plate and the horizon line must be from 0 to 20 degrees