Documentation for C-Werk 2.0.
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Type of requirements | Purpose | Requirements for the video image from the camera, which will be used for detection |
|---|---|---|
| Basic requirements | For the ANPR to operate using the detection tools | 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 | ||
| Additional requirements | To determine the vehicle driving direction | Camera installation height is at least 3 meters |
| Maximum angle between the camera and the road direction is 30° | ||
| Minimum camera tilt | ||
| To recognize the make and the model of the vehicle | Visible width of the vehicle is from 100px | |
| Color or black and white image | ||
| To recognize the color of the vehicle | Visible width of the vehicle is from 100px | |
| The scene illumination should be at least 50 lux. Under low or excessive illumination (night or backlight), the stability of the analytics operation is not guaranteed. There are no sudden changes in illumination | ||
| Color image with a normal color grade | ||
| To determine the condition of the headlights | Visible width of the vehicle is from 100px | |
| Front view of the vehicle | ||
| Evening, night or foggy shooting conditions are required |
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