Video camera requirements for the INTLAB software module

The following video camera requirements should be met in order to ensure the recognition of license plate numbers using the Auto-Intellect system.

1. Size of each image in sequence is not less than 320 dpi in width and not less than 240 dpi in height.
2. Height of LP symbols on the image is not less than 16px (for noninterlaced scan) or 32px (for interlaced scan).
3. License plate consists of latin symbols and digits; there is no any restrictions for font to write symbols.
4.  Number of fonts/styles for writing license plate symbols which are used simultaneously is not exceeded 4.
5. Brightness of field of LP symbols is changed not more than on 15 units (from 255 gradations);
6. Brightless of field of license plate is chsnged not more than on 30 units (from 255 gradations);
7. Only single-line plates can be recognized;
8. Difference of symbol sizes on the vehicle direction in the frame is not more than 3 units.
9. Each license plate is to be presented in the input data not less than in 3 frames.