To ensure the recognition of the state license plates with License plate recognition (Plate Recognition IV), it is necessary to install and configure the cameras to meet the following requirements:
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- Minimum video resolution is 640*480,
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- recommended resolution is 720p or 1080p
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- Minimum frame rate is 15 FPS,
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- recommended frame rate is 25–30 FPS
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- Autofocus and zoom would be useful for making small adjustments after configuring the detection tool
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- IR for night mode with good contrast of license plate images
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- In order to recognize state license plates on high-speed roads, the camera
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- must have the Global Shutter mode
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- must be clear, contrasting, without distortion, not blurred
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- must have minimum noise in low light conditions
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- Size of the license plate
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- must be 15–70% of the total size of the image
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- License plate must contain no more than two rows of characters
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- must be mounted at 0.6–2.4 meters above the ground
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- Angle formed by the lower line of the license plate and the horizon line
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- must be from 0 to 20 degrees
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