If i got the meaning of that parameter, you are lowering the
number of minutiae needed to have a match to 10;
indeed fingerprint verification succeeds most of the times now!

How did you choose "10" as a value?
Is it secure, in a way it doesnt produce false positives?
For instance here in italy the local government has set
that value to 16-17 minutiae (with 17 being a 100%
positive match)

Thanks a lot for your help!
guido



2009/7/31 Michael Cronenworth <[email protected]>

> On 07/27/2009 06:06 AM, Guido Grazioli wrote:
>
>> Hello all, i'm new to this list;
>>
>> I have a somewhat working aes1610 driver for libfprint-0.1.0-pre2,
>> based on the aes2501 driver and aes1610 driver from 0.0.6
>>
>> I need some help in testing, as even if acquired fingerprint scans
>> look good in fprint_demo, i cannot get any matches
>> The driver also randomly crashes when swiping the finger
>> too slowly in the reader.
>>
>>
> Good news everyone.
>
> I found the missing parameter that allows matching with the AES1610 -
> borrowed from the old aes1610 driver. I enrolled my right index and verified
> it successfully several times.
>
> You'll find the patch against your source attached.
>
> The crash is in nbis/mindtct/dft.c:188 and I couldn't trace down what was
> causing it but it may be a bug in libfprint and not the driver. I was not
> able to reproduce it after applying my patch though.
>
> Thanks for pursuing this. Looks like my original patch was futile. :)
>
>


-- 
Guido Grazioli <[email protected]>
Via Parri 11 48011 - Alfonsine (RA)
Mobile: +39 347 1017202 (10-18)
Key FP = 7040 F398 0DED A737 7337  DAE1 12DC A698 5E81 2278
Linked in: http://www.linkedin.com/in/guidograzioli
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