Buckinghamshire CC ANPR cameras

Clive D.W. Feather clive at davros.org
Tue Feb 7 15:06:02 GMT 2012

Roland Perry said:
> But this begs the question of how the "centre section" is 
> defined, because if it's not very precise (either in inches or in number 
> of characters) then it wouldn't even work for the traffic measurement.

Firstly, the plate is a nice yellow rectangle, which should make it easy to
spot on all except white and yellow cars.

If you define "centre" as being the central 50% of the width then, *for a
given car* you'll always get the same subset of the registration. It might
be a different subset for different cars, but that's irrelevant.

Clive D.W. Feather          | If you lie to the compiler,
Email: clive at davros.org     | it will get its revenge.
Web: http://www.davros.org  |   - Henry Spencer
Mobile: +44 7973 377646

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