Buckinghamshire CC ANPR cameras
Clive D.W. Feather
clive at davros.org
Tue Feb 7 17:52:48 GMT 2012
Peter Tomlinson said:
> You should "always get the same subset of the registration", but off the
> motorways there are a lot of cars (and even some vans) with incorrectly
> formatted plates  that may well confuse.
It doesn't matter. What I said was:
>> *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.
If one car gets characters 2 to 6 while another gets characters 3 to 7 or
even 3 to 5, you still get a consistent string for each car that you can
use to see, with reasonable accuracy, when the same car turns up further
along the road.
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
More information about the ukcrypto