Questions · Cameras
How fast can the car be going for the number plate to be read?
As fast as the exposure time can take without smearing the characters, and that is solved with a fast shutter and enough light to afford one. The faster the car goes, the shorter the shot has to be; the shorter the shot, the less light gets in; and that is why number plate cameras carry their own illuminator instead of relying on the lighting at the site.
The maximum speed each unit takes is published by the manufacturer and varies a lot between a car park barrier camera, where the car comes in at walking pace, and a road camera, meant for moving traffic. They are two different products and that is how you choose between them, not by resolution.
There is a cheap way of solving it when the numbers do not add up: make the car go slowly at the reading point. A speed hump, a narrowing or the barrier itself do more for the hit rate than moving up a range, and they are the first thing to look at when a reader fails at one particular entrance.
Where you can see it working.
On the IRIS Neural website, on real scenes.
All the questions.
Five hundred and forty-four, grouped by topic. Each with its own page.
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See it working.
A written answer is enough to decide whether it interests you. To know whether it works at your site you have to see it on a real scene, with the image as it is and, on top of it, what the system understands from it. That is on the IRIS Neural website, which is the group's product.